diff --git a/browser/app/profile/000-tor-browser.js b/browser/app/profile/000-tor-browser.js
index ab4cfba2ee508cad1833a01e23b01ab08bce6b09..4491f7105da5c5c102a612fe8e477019d351f1cc 100644
--- a/browser/app/profile/000-tor-browser.js
+++ b/browser/app/profile/000-tor-browser.js
@@ -296,15 +296,20 @@ pref("browser.uiCustomization.state", "{\"placements\":{\"widget-overflow-fixed-
 
 // Putting the search engine prefs into this file to fix #11236.
 // Default search engine
-pref("browser.search.defaultenginename", "Search");
+pref("browser.search.defaultenginename", "data:text/plain,browser.search.defaultenginename=DuckDuckGo");
+// Make sure we use the same search engine regardless of locale
+pref("browser.search.geoSpecificDefaults", false);
 
 // Search engine order (order displayed in the search bar dropdown)
 // Somewhat surprisingly we get some random behavior if we specify more than
 // two search engines as below. See
 // https://bugzilla.mozilla.org/show_bug.cgi?id=1126722 for details.
-pref("browser.search.order.extra.1", "Search");
+pref("browser.search.order.extra.1", "DuckDuckGo");
 pref("browser.search.order.extra.2", "YouTube");
 
+// Use old search config based on list.json
+pref("browser.search.modernConfig", false);
+
 // Enforce certificate pinning, see: https://bugs.torproject.org/16206
 pref("security.cert_pinning.enforcement_level", 2);
 
diff --git a/browser/components/search/extensions/ddg-onion/favicon.ico b/browser/components/search/extensions/ddg-onion/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..13c325f6585f6f39107e470b70674eb16352c14e
Binary files /dev/null and b/browser/components/search/extensions/ddg-onion/favicon.ico differ
diff --git a/browser/components/search/extensions/ddg-onion/manifest.json b/browser/components/search/extensions/ddg-onion/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..294496b783687231da37eca5c629a163becf6535
--- /dev/null
+++ b/browser/components/search/extensions/ddg-onion/manifest.json
@@ -0,0 +1,26 @@
+{
+  "name": "DuckDuckGoOnion",
+  "description": "Duck Duck Go Onion",
+  "manifest_version": 2,
+  "version": "1.0",
+  "applications": {
+    "gecko": {
+      "id": "ddg-onion@search.mozilla.org"
+    }
+  },
+  "hidden": true,
+  "icons": {
+    "16": "favicon.ico"
+  },
+  "web_accessible_resources": [
+    "favicon.ico"
+  ],
+  "chrome_settings_overrides": {
+    "search_provider": {
+      "name": "DuckDuckGoOnion",
+      "search_url": "https://3g2upl4pq6kufc4m.onion",
+      "search_form": "https://3g2upl4pq6kufc4m.onion",
+      "search_url_post_params": "q={searchTerms}"
+    }
+  }
+}
\ No newline at end of file
diff --git a/browser/components/search/extensions/ddg/favicon.ico b/browser/components/search/extensions/ddg/favicon.ico
deleted file mode 100644
index dda80dfd88d526223d9302bb98b05240d4b93a7d..0000000000000000000000000000000000000000
Binary files a/browser/components/search/extensions/ddg/favicon.ico and /dev/null differ
diff --git a/browser/components/search/extensions/ddg/favicon.png b/browser/components/search/extensions/ddg/favicon.png
new file mode 100644
index 0000000000000000000000000000000000000000..c853b95b89efdd171e24c5b59929e686e6812016
Binary files /dev/null and b/browser/components/search/extensions/ddg/favicon.png differ
diff --git a/browser/components/search/extensions/ddg/manifest.json b/browser/components/search/extensions/ddg/manifest.json
index b15330b16bf5c17a8348ceffd75561b08dc325e1..77400611ee205a12ce12bf53809ec6c205af1815 100644
--- a/browser/components/search/extensions/ddg/manifest.json
+++ b/browser/components/search/extensions/ddg/manifest.json
@@ -10,51 +10,19 @@
   },
   "hidden": true,
   "icons": {
-    "16": "favicon.ico"
+    "16": "favicon.png"
   },
   "web_accessible_resources": [
-    "favicon.ico"
+    "favicon.png"
   ],
   "chrome_settings_overrides": {
     "search_provider": {
       "name": "DuckDuckGo",
-      "search_url": "https://duckduckgo.com/",
-      "search_form": "https://duckduckgo.com/?q={searchTerms}",
-      "search_url_get_params": "q={searchTerms}",
-      "params": [
-        {
-          "name": "t",
-          "condition": "purpose",
-          "purpose": "contextmenu",
-          "value": "ffcm"
-        },
-        {
-          "name": "t",
-          "condition": "purpose",
-          "purpose": "keyword",
-          "value": "ffab"
-        },
-        {
-          "name": "t",
-          "condition": "purpose",
-          "purpose": "searchbar",
-          "value": "ffsb"
-        },
-        {
-          "name": "t",
-          "condition": "purpose",
-          "purpose": "homepage",
-          "value": "ffhp"
-        },
-        {
-          "name": "t",
-          "condition": "purpose",
-          "purpose": "newtab",
-          "value": "ffnt"
-        }
-      ],
+      "search_url": "https://duckduckgo.com",
+      "search_form": "https://duckduckgo.com",
+      "search_url_post_params": "q={searchTerms}",
       "suggest_url": "https://ac.duckduckgo.com/ac/",
       "suggest_url_get_params": "q={searchTerms}&type=list"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/browser/components/search/extensions/google/_locales/b-1-d/messages.json b/browser/components/search/extensions/google/_locales/b-1-d/messages.json
deleted file mode 100644
index 1b9d05307d64e9353e03e9da9f12a7f4f3e719f3..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/google/_locales/b-1-d/messages.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "extensionName": {
-    "message": "Google"
-  },
-  "extensionDescription": {
-    "message": "Google Search"
-  },
-  "searchUrl": {
-    "message": "https://www.google.com/search"
-  },
-  "searchForm": {
-    "message": "https://www.google.com/search?client=firefox-b-1-d&q={searchTerms}"
-  },
-  "suggestUrl": {
-    "message": "https://www.google.com/complete/search?client=firefox&q={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "client=firefox-b-1-d&q={searchTerms}"
-  },
-  "channelPref": {
-    "message": "google_channel_us"
-  }
-}
diff --git a/browser/components/search/extensions/google/_locales/b-1-e/messages.json b/browser/components/search/extensions/google/_locales/b-1-e/messages.json
deleted file mode 100644
index b470cd84433165710b069f838e744fe38f5dc5e2..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/google/_locales/b-1-e/messages.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "extensionName": {
-    "message": "Google"
-  },
-  "extensionDescription": {
-    "message": "Google Search"
-  },
-  "searchUrl": {
-    "message": "https://www.google.com/search"
-  },
-  "searchForm": {
-    "message": "https://www.google.com/search?client=firefox-b-1-e&q={searchTerms}"
-  },
-  "suggestUrl": {
-    "message": "https://www.google.com/complete/search?client=firefox&q={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "client=firefox-b-1-e&q={searchTerms}"
-  },
-  "channelPref": {
-    "message": "google_channel_us"
-  }
-}
diff --git a/browser/components/search/extensions/google/_locales/b-d/messages.json b/browser/components/search/extensions/google/_locales/b-d/messages.json
deleted file mode 100644
index a6423089d9f9ca899c4624d3633e73383586c217..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/google/_locales/b-d/messages.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "extensionName": {
-    "message": "Google"
-  },
-  "extensionDescription": {
-    "message": "Google Search"
-  },
-  "searchUrl": {
-    "message": "https://www.google.com/search"
-  },
-  "searchForm": {
-    "message": "https://www.google.com/search?client=firefox-b-d&q={searchTerms}"
-  },
-  "suggestUrl": {
-    "message": "https://www.google.com/complete/search?client=firefox&q={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "client=firefox-b-d&q={searchTerms}"
-  },
-  "channelPref": {
-    "message": "google_channel_row"
-  }
-}
diff --git a/browser/components/search/extensions/google/_locales/b-e/messages.json b/browser/components/search/extensions/google/_locales/b-e/messages.json
deleted file mode 100644
index 70939ee000743fc28b49bda0e8c5fa7e57e695fb..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/google/_locales/b-e/messages.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "extensionName": {
-    "message": "Google"
-  },
-  "extensionDescription": {
-    "message": "Google Search"
-  },
-  "searchUrl": {
-    "message": "https://www.google.com/search"
-  },
-  "searchForm": {
-    "message": "https://www.google.com/search?client=firefox-b-e&q={searchTerms}"
-  },
-  "suggestUrl": {
-    "message": "https://www.google.com/complete/search?client=firefox&q={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "client=firefox-b-e&q={searchTerms}"
-  },
-  "channelPref": {
-    "message": "google_channel_row"
-  }
-}
diff --git a/browser/components/search/extensions/google/_locales/en/messages.json b/browser/components/search/extensions/google/_locales/en/messages.json
deleted file mode 100644
index aeca0ef128b3cb814cbc180e45404051d0157916..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/google/_locales/en/messages.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "extensionName": {
-    "message": "Google"
-  },
-  "extensionDescription": {
-    "message": "Google Search"
-  },
-  "searchUrl": {
-    "message": "https://www.google.com/search"
-  },
-  "searchForm": {
-    "message": "https://www.google.com/search?client=firefox-b-d&q={searchTerms}"
-  },
-  "suggestUrl": {
-    "message": "https://www.google.com/complete/search?client=firefox&q={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "client=firefox-b-d&q={searchTerms}"
-  },
-  "channelPref": {
-    "message": "google_channel_row"
-  }
-
-}
diff --git a/browser/components/search/extensions/google/manifest.json b/browser/components/search/extensions/google/manifest.json
index d51213b52d22132128344d410ae9d84fcc7138e2..b62de30cb7faf52add13d137f12b7d643e7fd642 100644
--- a/browser/components/search/extensions/google/manifest.json
+++ b/browser/components/search/extensions/google/manifest.json
@@ -1,6 +1,6 @@
 {
-  "name": "__MSG_extensionName__",
-  "description": "__MSG_extensionDescription__",
+  "name": "Google",
+  "description": "Google Search",
   "manifest_version": 2,
   "version": "1.0",
   "applications": {
@@ -9,7 +9,6 @@
     }
   },
   "hidden": true,
-  "default_locale": "en",
   "icons": {
     "16": "favicon.ico"
   },
@@ -18,18 +17,18 @@
   ],
   "chrome_settings_overrides": {
     "search_provider": {
-      "name": "__MSG_extensionName__",
-      "search_url": "__MSG_searchUrl__",
-      "search_form": "__MSG_searchForm__",
-      "suggest_url": "__MSG_suggestUrl__",
+      "name": "Google",
+      "search_url": "https://www.google.com/search",
+      "search_form": "https://www.google.com/search?client=firefox-b-d&q={searchTerms}",
+      "suggest_url": "https://www.google.com/complete/search?client=firefox&q={searchTerms}",
       "params": [
         {
           "name": "channel",
           "condition": "pref",
-          "pref": "__MSG_channelPref__"
+          "pref": "google_channel_row"
         }
       ],
-      "search_url_get_params": "__MSG_searchUrlGetParams__"
+      "search_url_get_params": "client=firefox-b-d&q={searchTerms}"
     }
   }
 }
diff --git a/browser/components/search/extensions/list.json b/browser/components/search/extensions/list.json
index 52b2da3ada2d243070fa2c5e507052d1f37c0507..04f198072b3d82781f30bcdddbb6c337aa53e10f 100644
--- a/browser/components/search/extensions/list.json
+++ b/browser/components/search/extensions/list.json
@@ -1,86 +1,20 @@
 {
   "default": {
-    "searchDefault": "Google",
-    "searchOrder": ["Google", "Bing"],
+    "searchDefault": "DuckDuckGo",
+    "searchOrder": ["DuckDuckGo", "YouTube", "Google"],
     "visibleDefaultEngines": [
-      "google-b-d", "amazondotcom", "bing", "ddg", "ebay", "wikipedia"
+      "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
     ]
   },
   "regionOverrides": {
-    "US": {
-      "google-b-d": "google-b-1-d"
-    },
-    "CA": {
-      "ebay": "ebay-ca",
-      "ebay-fr": "ebay-ca",
-      "amazondotcom": "amazon-ca",
-      "amazon-france": "amazon-ca"
-    },
-    "AT": {
-      "ebay-de": "ebay-at"
-    },
-    "AU": {
-      "ebay": "ebay-au",
-      "ebay-uk": "ebay-au",
-      "amazondotcom": "amazon-au",
-      "amazon-en-GB": "amazon-au"
-    },
-    "BE": {
-      "ebay": "ebay-be",
-      "ebay-nl": "ebay-be",
-      "ebay-fr": "ebay-be"
-    },
-    "CH": {
-      "ebay": "ebay-ch",
-      "ebay-de": "ebay-ch",
-      "ebay-fr": "ebay-ch"
-    },
-    "FR": {
-      "amazondotcom": "amazon-france"
-    },
-    "IE": {
-      "ebay": "ebay-ie",
-      "ebay-uk": "ebay-ie"
-    },
-    "NL": {
-      "ebay": "ebay-nl"
-    },
-    "GB": {
-      "ebay": "ebay-uk",
-      "amazondotcom": "amazon-en-GB"
-    }
   },
   "locales": {
     "en-US": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazondotcom", "bing", "ddg", "ebay", "wikipedia"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       },
-      "KZ": {
-        "visibleDefaultEngines": [
-          "amazondotcom", "bing", "google-b-d", "wikipedia", "ddg", "yandex-en"
-        ],
-        "searchDefault": "Yandex"
-      },
-      "BY": {
-        "visibleDefaultEngines": [
-          "amazondotcom", "bing", "google-b-d", "wikipedia", "ddg", "yandex-en"
-        ],
-        "searchDefault": "Yandex"
-      },
-      "RU": {
-        "visibleDefaultEngines": [
-          "amazondotcom", "bing", "google-b-d", "wikipedia", "ddg", "yandex-en"
-        ],
-        "searchDefault": "Yandex"
-      },
-      "TR": {
-        "visibleDefaultEngines": [
-          "amazondotcom", "bing", "google-b-d", "wikipedia", "ddg", "yandex-en"
-        ],
-        "searchDefault": "Yandex"
-      },
       "experimental-hidden": {
         "visibleDefaultEngines": [
           "amazon-ca", "amazon-au", "yandex-en", "google", "google-b-1-e", "google-b-e"
@@ -111,7 +45,7 @@
     "ar": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazondotcom", "ddg", "wikipedia-ar"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -207,7 +141,7 @@
     "ca": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "diec2", "ddg", "ebay-es", "wikipedia-ca"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -234,9 +168,8 @@
     },
     "cs": {
       "default": {
-        "searchOrder": ["Google", "Seznam"],
         "visibleDefaultEngines": [
-          "google-b-d", "seznam-cz", "ddg", "heureka-cz", "mapy-cz", "wikipedia-cz"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -250,14 +183,14 @@
     "da": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazon-en-GB", "ddg", "wikipedia-da"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "de": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazon-de", "bing", "ddg", "ebay-de", "ecosia", "leo_ende_de", "wikipedia-de"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -271,7 +204,7 @@
     "el": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazon-en-GB", "bing", "ddg", "wikipedia-el"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -357,7 +290,7 @@
     "es-AR": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazondotcom", "drae", "ddg", "mercadolibre-ar", "wikipedia-es"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -371,7 +304,7 @@
     "es-ES": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "drae", "ddg", "ebay-es", "wikipedia-es"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -404,7 +337,7 @@
     "fa": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazondotcom", "bing", "ddg", "wikipedia-fa"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -425,7 +358,7 @@
     "fr": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazon-france", "ddg", "ebay-fr", "qwant", "wikipedia-fr"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -444,7 +377,7 @@
     "ga-IE": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazon-en-GB", "ddg", "ebay-ie", "tearma", "wikipedia-ga-IE"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -479,7 +412,7 @@
     "he": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "ddg", "wikipedia-he", "morfix-dic"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -507,7 +440,7 @@
     "hu": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "ddg", "vatera", "wikipedia-hu"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -535,44 +468,42 @@
     "id": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "ddg", "wikipedia-id"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "is": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazondotcom", "ddg", "wikipedia-is"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "it": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazon-it", "ddg", "ebay-it", "wikipedia-it"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "ja-JP-macos": {
       "default": {
-        "searchOrder": ["Google", "Yahoo! JAPAN", "Bing", "Amazon.co.jp", "楽天市場", "ヤフオク!", "教えて!goo", "Wikipedia (ja)"],
         "visibleDefaultEngines": [
-          "google-b-d", "yahoo-jp", "bing", "amazon-jp", "rakuten", "yahoo-jp-auctions", "oshiete-goo", "wikipedia-ja", "ddg"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "ja": {
       "default": {
-        "searchOrder": ["Google", "Yahoo! JAPAN", "Bing", "Amazon.co.jp", "楽天市場", "ヤフオク!", "教えて!goo", "Wikipedia (ja)"],
         "visibleDefaultEngines": [
-          "google-b-d", "yahoo-jp", "bing", "amazon-jp", "rakuten", "yahoo-jp-auctions", "oshiete-goo", "wikipedia-ja", "ddg"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "ka": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazondotcom", "ddg", "wikipedia-ka"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -619,7 +550,7 @@
     "ko": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "ddg", "naver-kr", "daum-kr", "wikipedia-kr"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -668,7 +599,7 @@
     "mk": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazondotcom", "ddg", "wikipedia-mk"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -696,7 +627,7 @@
     "nb-NO": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "amazon-en-GB", "bing", "ddg", "gulesider-NO", "bok-NO", "qxl-NO", "wikipedia-NO"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -710,7 +641,7 @@
     "nl": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "bolcom-nl", "ddg", "ebay-nl", "marktplaats-nl", "wikipedia-nl"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       },
       "experimental-hidden": {
@@ -743,14 +674,14 @@
     "pl": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "allegro-pl", "ddg", "pwn-pl", "wikipedia-pl", "wolnelektury-pl"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "pt-BR": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "ddg", "mercadolivre", "wikipedia-pt"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -771,14 +702,14 @@
     "ro": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "amazondotcom", "ddg", "wikipedia-ro"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
     "ru": {
       "default": {
         "visibleDefaultEngines": [
-          "yandex-ru", "google-b-d", "ddg", "ozonru", "priceru", "wikipedia-ru", "mailru"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       },
       "RU": {
@@ -846,7 +777,7 @@
     "sv-SE": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "bing", "allaannonser-sv-SE", "ddg", "prisjakt-sv-SE", "tyda-sv-SE", "wikipedia-sv-SE"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -881,7 +812,7 @@
     "tr": {
       "default": {
         "visibleDefaultEngines": [
-          "yandex-tr", "google-b-d", "ddg", "wikipedia-tr"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       },
       "TR": {
@@ -928,7 +859,7 @@
     "vi": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "coccoc", "ddg", "wikipedia-vi"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     },
@@ -949,7 +880,7 @@
     "zh-CN": {
       "default": {
         "visibleDefaultEngines": [
-          "baidu", "google-b-d", "bing", "ddg", "wikipedia-zh-CN", "amazondotcn"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       },
       "CN": {
@@ -959,7 +890,7 @@
     "zh-TW": {
       "default": {
         "visibleDefaultEngines": [
-          "google-b-d", "ddg", "readmoo", "wikipedia-zh-TW"
+          "ddg", "ddg-onion", "google", "yahoo", "twitter", "wikipedia", "youtube", "startpage"
         ]
       }
     }
diff --git a/browser/components/search/extensions/startpage/favicon.png b/browser/components/search/extensions/startpage/favicon.png
new file mode 100644
index 0000000000000000000000000000000000000000..44b94a986fd2e5608b5d646df30685cefedd5a0a
Binary files /dev/null and b/browser/components/search/extensions/startpage/favicon.png differ
diff --git a/browser/components/search/extensions/startpage/manifest.json b/browser/components/search/extensions/startpage/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..c9bd9e1848d0eb3981b92b3c20faa4b88cdceaec
--- /dev/null
+++ b/browser/components/search/extensions/startpage/manifest.json
@@ -0,0 +1,26 @@
+{
+  "name": "Startpage",
+  "description": "Start Page",
+  "manifest_version": 2,
+  "version": "1.0",
+  "applications": {
+    "gecko": {
+      "id": "startpage@search.mozilla.org"
+    }
+  },
+  "hidden": true,
+  "icons": {
+    "16": "favicon.png"
+  },
+  "web_accessible_resources": [
+    "favicon.png"
+  ],
+  "chrome_settings_overrides": {
+    "search_provider": {
+      "name": "Startpage",
+      "search_url": "https://startpage.com/rto/search",
+      "search_form": "https://startpage.com/rto/search/",
+      "search_url_post_params": "q={searchTerms}"
+    }
+  }
+}
\ No newline at end of file
diff --git a/browser/components/search/extensions/twitter/favicon.ico b/browser/components/search/extensions/twitter/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..e5aaff437912d5945d55c81b7b6340e3830e4c50
Binary files /dev/null and b/browser/components/search/extensions/twitter/favicon.ico differ
diff --git a/browser/components/search/extensions/twitter/manifest.json b/browser/components/search/extensions/twitter/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..59714e0e10450ac2918bcbb09de420a7b5c093aa
--- /dev/null
+++ b/browser/components/search/extensions/twitter/manifest.json
@@ -0,0 +1,26 @@
+{
+  "name": "Twitter",
+  "description": "Realtime Twitter Search",
+  "manifest_version": 2,
+  "version": "1.0",
+  "applications": {
+    "gecko": {
+      "id": "twitter@search.mozilla.org"
+    }
+  },
+  "hidden": true,
+  "icons": {
+    "16": "favicon.ico"
+  },
+  "web_accessible_resources": [
+    "favicon.ico"
+  ],
+  "chrome_settings_overrides": {
+    "search_provider": {
+      "name": "Twitter",
+      "search_url": "https://twitter.com/search",
+      "search_form": "https://twitter.com/search?q={searchTerms}&partner=Firefox&source=desktop-search",
+      "search_url_get_params": "q={searchTerms}&partner=Firefox&source=desktop-search"
+    }
+  }
+}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/NN/messages.json b/browser/components/search/extensions/wikipedia/_locales/NN/messages.json
deleted file mode 100644
index e4ee66bc780dd5677e30df3632bdb19274d7fc49..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/NN/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (nn)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, det frie oppslagsverket"
-  },
-  "searchUrl": {
-    "message": "https://nn.wikipedia.org/wiki/Spesial:Søk"
-  },
-  "searchForm": {
-    "message": "https://nn.wikipedia.org/wiki/Spesial:Søk?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://nn.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/NO/messages.json b/browser/components/search/extensions/wikipedia/_locales/NO/messages.json
deleted file mode 100644
index ec016ac7337ebb217527a7d155f7b3c7e23a6428..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/NO/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (no)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, den frie encyklopedi"
-  },
-  "searchUrl": {
-    "message": "https://no.wikipedia.org/wiki/Spesial:Søk"
-  },
-  "searchForm": {
-    "message": "https://no.wikipedia.org/wiki/Spesial:Søk?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://no.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/af/messages.json b/browser/components/search/extensions/wikipedia/_locales/af/messages.json
deleted file mode 100644
index 8cf9de8ac9b325d842d9591c909ee19dfa1834c5..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/af/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (af)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, die vrye ensiklopedie"
-  },
-  "searchUrl": {
-    "message": "https://af.wikipedia.org/wiki/Spesiaal:Soek"
-  },
-  "searchForm": {
-    "message": "https://af.wikipedia.org/wiki/Spesiaal:Soek?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://af.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/an/messages.json b/browser/components/search/extensions/wikipedia/_locales/an/messages.json
deleted file mode 100644
index e8cce665c96ed61189f0675cc4d260a12dc1c3f7..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/an/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Biquipedia (an)"
-  },
-  "extensionDescription": {
-    "message": "A enciclopedia Libre"
-  },
-  "searchUrl": {
-    "message": "https://an.wikipedia.org/wiki/Especial:Mirar"
-  },
-  "searchForm": {
-    "message": "https://an.wikipedia.org/wiki/Especial:Mirar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://an.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ar/messages.json b/browser/components/search/extensions/wikipedia/_locales/ar/messages.json
deleted file mode 100644
index de90b2a2055eb440da3fde66dd0c739a12ff6d82..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ar/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ويكيبيديا (ar)"
-  },
-  "extensionDescription": {
-    "message": "ويكيبيديا (ar)"
-  },
-  "searchUrl": {
-    "message": "https://ar.wikipedia.org/wiki/خاص:بحث"
-  },
-  "searchForm": {
-    "message": "https://ar.wikipedia.org/wiki/خاص:بحث?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ar.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ast/messages.json b/browser/components/search/extensions/wikipedia/_locales/ast/messages.json
deleted file mode 100644
index a127ba07f29b20de9e8e44ba566699384b6d1195..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ast/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (ast)"
-  },
-  "extensionDescription": {
-    "message": "La enciclopedia llibre"
-  },
-  "searchUrl": {
-    "message": "https://ast.wikipedia.org/wiki/Especial:Gueta"
-  },
-  "searchForm": {
-    "message": "https://ast.wikipedia.org/wiki/Especial:Gueta?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ast.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/az/messages.json b/browser/components/search/extensions/wikipedia/_locales/az/messages.json
deleted file mode 100644
index f551a717e6d34e6af109e667a5f8eeff87162daa..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/az/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipediya (az)"
-  },
-  "extensionDescription": {
-    "message": "Vikipediya, açıq ensiklopediya"
-  },
-  "searchUrl": {
-    "message": "https://az.wikipedia.org/wiki/Xüsusi:Axtar"
-  },
-  "searchForm": {
-    "message": "https://az.wikipedia.org/wiki/Xüsusi:Axtar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://az.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/be-tarask/messages.json b/browser/components/search/extensions/wikipedia/_locales/be-tarask/messages.json
deleted file mode 100644
index aecfecf2fb190f9d02f917555d98e0bbd07bf3ad..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/be-tarask/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Вікіпэдыя (be-tarask)"
-  },
-  "extensionDescription": {
-    "message": "Вікіпэдыя, вольная энцыкляпэдыя"
-  },
-  "searchUrl": {
-    "message": "https://be-tarask.wikipedia.org/wiki/Спэцыяльныя:Пошук"
-  },
-  "searchForm": {
-    "message": "https://be-tarask.wikipedia.org/wiki/Спэцыяльныя:Пошук?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://be-tarask.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/be/messages.json b/browser/components/search/extensions/wikipedia/_locales/be/messages.json
deleted file mode 100644
index 6aa763451e677a0506b4efe2542cc4cdcb8b2344..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/be/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Вікіпедыя (be)"
-  },
-  "extensionDescription": {
-    "message": "Вікіпедыя, свабодная энцыклапедыя"
-  },
-  "searchUrl": {
-    "message": "https://be.wikipedia.org/wiki/Адмысловае:Search"
-  },
-  "searchForm": {
-    "message": "https://be.wikipedia.org/wiki/Адмысловае:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://be.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/bg/messages.json b/browser/components/search/extensions/wikipedia/_locales/bg/messages.json
deleted file mode 100644
index 896a85d66b877ccc446f9796fcbde4d0aa527a1d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/bg/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Уикипедия (bg)"
-  },
-  "extensionDescription": {
-    "message": "Уикипедия, свободната енциклоподия"
-  },
-  "searchUrl": {
-    "message": "https://bg.wikipedia.org/wiki/Специални:Търсене"
-  },
-  "searchForm": {
-    "message": "https://bg.wikipedia.org/wiki/Специални:Търсене?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://bg.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/bn/messages.json b/browser/components/search/extensions/wikipedia/_locales/bn/messages.json
deleted file mode 100644
index fe9887ed1938a5ce0e0588190a0a7b8b3b4b748f..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/bn/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "উইকিপিডিয়া (bn)"
-  },
-  "extensionDescription": {
-    "message": "উইকিপিডিয়া, মুক্ত বিশ্বকোষ"
-  },
-  "searchUrl": {
-    "message": "https://bn.wikipedia.org/wiki/বিশেষ:Search"
-  },
-  "searchForm": {
-    "message": "https://bn.wikipedia.org/wiki/বিশেষ:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://bn.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/br/messages.json b/browser/components/search/extensions/wikipedia/_locales/br/messages.json
deleted file mode 100644
index 33869ce8e752f3eab32ef1cd52383ed845580f4b..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/br/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (br)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, an holloueziadur digor"
-  },
-  "searchUrl": {
-    "message": "https://br.wikipedia.org/wiki/Dibar:Klask"
-  },
-  "searchForm": {
-    "message": "https://br.wikipedia.org/wiki/Dibar:Klask?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://br.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/bs/messages.json b/browser/components/search/extensions/wikipedia/_locales/bs/messages.json
deleted file mode 100644
index 746150e3d8e84cc46fe0dad9c8f316863534cfbe..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/bs/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (bs)"
-  },
-  "extensionDescription": {
-    "message": "Slobodna enciklopedija"
-  },
-  "searchUrl": {
-    "message": "https://bs.wikipedia.org/wiki/Posebno:Pretraga"
-  },
-  "searchForm": {
-    "message": "https://bs.wikipedia.org/wiki/Posebno:Pretraga?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://bs.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ca/messages.json b/browser/components/search/extensions/wikipedia/_locales/ca/messages.json
deleted file mode 100644
index 151ec1a71ba53085ce80b07df23c4a6408ba576c..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ca/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Viquipèdia (ca)"
-  },
-  "extensionDescription": {
-    "message": "L'enciclopèdia lliure"
-  },
-  "searchUrl": {
-    "message": "https://ca.wikipedia.org/wiki/Especial:Cerca"
-  },
-  "searchForm": {
-    "message": "https://ca.wikipedia.org/wiki/Especial:Cerca?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ca.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/cy/messages.json b/browser/components/search/extensions/wikipedia/_locales/cy/messages.json
deleted file mode 100644
index cfed7c73be34f3d12cad8a923a7d992a37abf7f2..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/cy/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wicipedia (cy)"
-  },
-  "extensionDescription": {
-    "message": "Wicipedia, Y Gwyddioniadur Rhydd"
-  },
-  "searchUrl": {
-    "message": "https://cy.wikipedia.org/wiki/Arbennig:Search"
-  },
-  "searchForm": {
-    "message": "https://cy.wikipedia.org/wiki/Arbennig:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://cy.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/cz/messages.json b/browser/components/search/extensions/wikipedia/_locales/cz/messages.json
deleted file mode 100644
index 12f7eb22d711b0202ba53b9f386da2fd9376c9ce..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/cz/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedie (cs)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, svobodná encyclopedie"
-  },
-  "searchUrl": {
-    "message": "https://cs.wikipedia.org/wiki/Speciální:Hledání"
-  },
-  "searchForm": {
-    "message": "https://cs.wikipedia.org/wiki/Speciální:Hledání?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://cs.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/da/messages.json b/browser/components/search/extensions/wikipedia/_locales/da/messages.json
deleted file mode 100644
index 801d5a5183ccd67ad77520358c0b6e8e09d2ae97..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/da/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (da)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, den frie encyklopædi"
-  },
-  "searchUrl": {
-    "message": "https://da.wikipedia.org/wiki/Speciel:Søgning"
-  },
-  "searchForm": {
-    "message": "https://da.wikipedia.org/wiki/Speciel:Søgning?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://da.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/de/messages.json b/browser/components/search/extensions/wikipedia/_locales/de/messages.json
deleted file mode 100644
index 0e6bbe8905ca653953772d72b749d0f9a7c93fe9..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/de/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (de)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, die freie Enzyklopädie"
-  },
-  "searchUrl": {
-    "message": "https://de.wikipedia.org/wiki/Spezial:Suche"
-  },
-  "searchForm": {
-    "message": "https://de.wikipedia.org/wiki/Spezial:Suche?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://de.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/dsb/messages.json b/browser/components/search/extensions/wikipedia/_locales/dsb/messages.json
deleted file mode 100644
index ffca44b5f7fb2a42a1a166dc5ea04f4a632c75bb..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/dsb/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedija (dsb)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedija, lichotna encyklopedija"
-  },
-  "searchUrl": {
-    "message": "https://dsb.wikipedia.org/wiki/Specialne:PytaÅ›"
-  },
-  "searchForm": {
-    "message": "https://dsb.wikipedia.org/wiki/Specialne:PytaÅ›?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://dsb.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/el/messages.json b/browser/components/search/extensions/wikipedia/_locales/el/messages.json
deleted file mode 100644
index 95b48f3d9ca7b96c565f7db868b495743e76a4e1..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/el/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (el)"
-  },
-  "extensionDescription": {
-    "message": "Βικιπαίδεια, η ελεύθερη εγκυκλοπαίδεια"
-  },
-  "searchUrl": {
-    "message": "https://el.wikipedia.org/wiki/Ειδικό:Αναζήτηση"
-  },
-  "searchForm": {
-    "message": "https://el.wikipedia.org/wiki/Ειδικό:Αναζήτηση?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://el.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/en/messages.json b/browser/components/search/extensions/wikipedia/_locales/en/messages.json
deleted file mode 100644
index 0de3c9a8071a74cbfbed57d2fdb4537d75cfd9ed..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/en/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (en)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, the Free Encyclopedia"
-  },
-  "searchUrl": {
-    "message": "https://en.wikipedia.org/wiki/Special:Search"
-  },
-  "searchForm": {
-    "message": "https://en.wikipedia.org/wiki/Special:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://en.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/eo/messages.json b/browser/components/search/extensions/wikipedia/_locales/eo/messages.json
deleted file mode 100644
index 10aa88dd11ba83ff849cfd479fc418daaf9ae067..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/eo/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipedio (eo)"
-  },
-  "extensionDescription": {
-    "message": "Vikipedio, la libera enciklopedio"
-  },
-  "searchUrl": {
-    "message": "https://eo.wikipedia.org/wiki/Specialaĵo:Serĉi"
-  },
-  "searchForm": {
-    "message": "https://eo.wikipedia.org/wiki/Specialaĵo:Serĉi?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://eo.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/es/messages.json b/browser/components/search/extensions/wikipedia/_locales/es/messages.json
deleted file mode 100644
index 09ec1f757657dd74aa031395586106a7d7a95aac..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/es/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (es)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, la enciclopedia libre"
-  },
-  "searchUrl": {
-    "message": "https://es.wikipedia.org/wiki/Especial:Buscar"
-  },
-  "searchForm": {
-    "message": "https://es.wikipedia.org/wiki/Especial:Buscar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://es.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/et/messages.json b/browser/components/search/extensions/wikipedia/_locales/et/messages.json
deleted file mode 100644
index 91363fbb392b7c92d69c429abe1a20077eca6698..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/et/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipeedia (et)"
-  },
-  "extensionDescription": {
-    "message": "Vikipeedia, vaba entsüklopeedia"
-  },
-  "searchUrl": {
-    "message": "https://et.wikipedia.org/wiki/Eri:Otsimine"
-  },
-  "searchForm": {
-    "message": "https://et.wikipedia.org/wiki/Eri:Otsimine?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://et.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/eu/messages.json b/browser/components/search/extensions/wikipedia/_locales/eu/messages.json
deleted file mode 100644
index 1bd7027dec54f044b733f2425e7ee76205a56e8f..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/eu/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (eu)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, entziklopedia askea"
-  },
-  "searchUrl": {
-    "message": "https://eu.wikipedia.org/wiki/Berezi:Bilatu"
-  },
-  "searchForm": {
-    "message": "https://eu.wikipedia.org/wiki/Berezi:Bilatu?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://eu.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/fa/messages.json b/browser/components/search/extensions/wikipedia/_locales/fa/messages.json
deleted file mode 100644
index 9fdc964a1e0b1f054194c86a46d996e9bff7e48e..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/fa/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ویکی‌پدیا (fa)"
-  },
-  "extensionDescription": {
-    "message": "ویکی‌پدیا، دانشنامهٔ آزاد"
-  },
-  "searchUrl": {
-    "message": "https://fa.wikipedia.org/wiki/ویژه:جستجو"
-  },
-  "searchForm": {
-    "message": "https://fa.wikipedia.org/wiki/ویژه:جستجو?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://fa.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/fi/messages.json b/browser/components/search/extensions/wikipedia/_locales/fi/messages.json
deleted file mode 100644
index 17a9cbe22c42140b5bcee5efeb11556207315566..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/fi/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (fi)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia (fi), vapaa tietosanakirja"
-  },
-  "searchUrl": {
-    "message": "https://fi.wikipedia.org/wiki/Toiminnot:Haku"
-  },
-  "searchForm": {
-    "message": "https://fi.wikipedia.org/wiki/Toiminnot:Haku?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://fi.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/fr/messages.json b/browser/components/search/extensions/wikipedia/_locales/fr/messages.json
deleted file mode 100644
index 33dcbe9dc502f816873e88957daeab9fcf156813..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/fr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipédia (fr)"
-  },
-  "extensionDescription": {
-    "message": "Wikipédia, l'encyclopédie libre"
-  },
-  "searchUrl": {
-    "message": "https://fr.wikipedia.org/wiki/Spécial:Recherche"
-  },
-  "searchForm": {
-    "message": "https://fr.wikipedia.org/wiki/Spécial:Recherche?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://fr.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/fy-NL/messages.json b/browser/components/search/extensions/wikipedia/_locales/fy-NL/messages.json
deleted file mode 100644
index f350162fbbaf996d4ffba1161cabe9c23327e290..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/fy-NL/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedy (fy)"
-  },
-  "extensionDescription": {
-    "message": "De fergese ensyklopedy"
-  },
-  "searchUrl": {
-    "message": "https://fy.wikipedia.org/wiki/Wiki:Sykje"
-  },
-  "searchForm": {
-    "message": "https://fy.wikipedia.org/wiki/Wiki:Sykje?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://fy.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ga-IE/messages.json b/browser/components/search/extensions/wikipedia/_locales/ga-IE/messages.json
deleted file mode 100644
index 994ea723c6dadf26f0834a7a378342a50283e609..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ga-IE/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vicipéid (ga)"
-  },
-  "extensionDescription": {
-    "message": "Vicipéid, an Chiclipéid Shaor"
-  },
-  "searchUrl": {
-    "message": "https://ga.wikipedia.org/wiki/Speisialta:Search"
-  },
-  "searchForm": {
-    "message": "https://ga.wikipedia.org/wiki/Speisialta:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ga.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/gd/messages.json b/browser/components/search/extensions/wikipedia/_locales/gd/messages.json
deleted file mode 100644
index f16f16fb4a02ae3e9a222e58e7e86531258d7c0f..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/gd/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Uicipeid (gd)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, An leabhar mòr-eòlais"
-  },
-  "searchUrl": {
-    "message": "https://gd.wikipedia.org/wiki/Sònraichte:Search"
-  },
-  "searchForm": {
-    "message": "https://gd.wikipedia.org/wiki/Sònraichte:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://gd.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/gl/messages.json b/browser/components/search/extensions/wikipedia/_locales/gl/messages.json
deleted file mode 100644
index 88880bffc3d948227596d9b53c6a01cd41473300..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/gl/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (gl)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, a enciclopedia libre"
-  },
-  "searchUrl": {
-    "message": "https://gl.wikipedia.org/wiki/Especial:Procurar"
-  },
-  "searchForm": {
-    "message": "https://gl.wikipedia.org/wiki/Especial:Procurar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://gl.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/gn/messages.json b/browser/components/search/extensions/wikipedia/_locales/gn/messages.json
deleted file mode 100644
index 5efc5ed74a95d2f45b19cc7ab8168171e6d70fb9..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/gn/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipetã (gn)"
-  },
-  "extensionDescription": {
-    "message": "Vikipetã, opaite tembikuaa hekosãsóva renda"
-  },
-  "searchUrl": {
-    "message": "https://gn.wikipedia.org/wiki/Mba'echĩchĩ:Buscar"
-  },
-  "searchForm": {
-    "message": "https://gn.wikipedia.org/wiki/Mba'echĩchĩ:Buscar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://gn.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/gu/messages.json b/browser/components/search/extensions/wikipedia/_locales/gu/messages.json
deleted file mode 100644
index 3d2f68826fc57b9ec5512b97193eaf3c44e9aded..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/gu/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "વિકિપીડિયા (gu)"
-  },
-  "extensionDescription": {
-    "message": "વીકીપીડિયા, મુક્ત એનસાયક્લોપીડિયા"
-  },
-  "searchUrl": {
-    "message": "https://gu.wikipedia.org/wiki/વિશેષ:શોધ"
-  },
-  "searchForm": {
-    "message": "https://gu.wikipedia.org/wiki/વિશેષ:શોધ?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://gu.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/he/messages.json b/browser/components/search/extensions/wikipedia/_locales/he/messages.json
deleted file mode 100644
index 1f8471e980f0aa5555f7898ef082444ea170c37c..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/he/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ויקיפדיה"
-  },
-  "extensionDescription": {
-    "message": "ויקיפדיה"
-  },
-  "searchUrl": {
-    "message": "https://he.wikipedia.org/wiki/מיוחד:חיפוש"
-  },
-  "searchForm": {
-    "message": "https://he.wikipedia.org/wiki/מיוחד:חיפוש?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://he.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/hi/messages.json b/browser/components/search/extensions/wikipedia/_locales/hi/messages.json
deleted file mode 100644
index f3b7d14eafa02fb17880f83772144931e75d1a8e..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/hi/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "विकिपीडिया (hi)"
-  },
-  "extensionDescription": {
-    "message": "विकिपीडिया (हिन्दी)"
-  },
-  "searchUrl": {
-    "message": "https://hi.wikipedia.org/wiki/विशेष:खोज"
-  },
-  "searchForm": {
-    "message": "https://hi.wikipedia.org/wiki/विशेष:खोज?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://hi.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/hr/messages.json b/browser/components/search/extensions/wikipedia/_locales/hr/messages.json
deleted file mode 100644
index 18a6177efccafc0f2d3957bd4d0deca5487eeb3f..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/hr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedija (hr)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedija, slobodna enciklopedija"
-  },
-  "searchUrl": {
-    "message": "https://hr.wikipedia.org/wiki/Posebno:Traži"
-  },
-  "searchForm": {
-    "message": "https://hr.wikipedia.org/wiki/Posebno:Traži?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://hr.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/hsb/messages.json b/browser/components/search/extensions/wikipedia/_locales/hsb/messages.json
deleted file mode 100644
index d4e62836e6e94ea909a4cd7def100568515d7cf4..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/hsb/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedija (hsb)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedija, swobodna encyklopedija"
-  },
-  "searchUrl": {
-    "message": "https://hsb.wikipedia.org/wiki/Specialnje:Pytać"
-  },
-  "searchForm": {
-    "message": "https://hsb.wikipedia.org/wiki/Specialnje:Pytać?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://hsb.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/hu/messages.json b/browser/components/search/extensions/wikipedia/_locales/hu/messages.json
deleted file mode 100644
index 68300c48a6f3d6ffcdf41f85951bb1270b7a1f7d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/hu/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipédia (hu)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, a szabad enciklopédia"
-  },
-  "searchUrl": {
-    "message": "https://hu.wikipedia.org/wiki/Speciális:Keresés"
-  },
-  "searchForm": {
-    "message": "https://hu.wikipedia.org/wiki/Speciális:Keresés?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://hu.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/hy/messages.json b/browser/components/search/extensions/wikipedia/_locales/hy/messages.json
deleted file mode 100644
index 56c2ae2c641b761ef622c5c9ccc3bb4f71423e80..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/hy/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (hy)"
-  },
-  "extensionDescription": {
-    "message": "Վիքիփեդիա՝ ազատ հանրագիտարան"
-  },
-  "searchUrl": {
-    "message": "https://hy.wikipedia.org/wiki/Սպասարկող:Որոնել"
-  },
-  "searchForm": {
-    "message": "https://hy.wikipedia.org/wiki/Սպասարկող:Որոնել?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://hy.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ia/messages.json b/browser/components/search/extensions/wikipedia/_locales/ia/messages.json
deleted file mode 100644
index 6d997ae8fc8162b1226b2b4d3f07248c7daf9d4c..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ia/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (ia)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, le encyclopedia libere"
-  },
-  "searchUrl": {
-    "message": "https://ia.wikipedia.org/wiki/Special:Recerca"
-  },
-  "searchForm": {
-    "message": "https://ia.wikipedia.org/wiki/Special:Recerca?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ia.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/id/messages.json b/browser/components/search/extensions/wikipedia/_locales/id/messages.json
deleted file mode 100644
index 1d35e71b956d4c87c90294ba72c865777238682e..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/id/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (id)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, ensiklopedia bebas"
-  },
-  "searchUrl": {
-    "message": "https://id.wikipedia.org/wiki/Istimewa:Pencarian"
-  },
-  "searchForm": {
-    "message": "https://id.wikipedia.org/wiki/Istimewa:Pencarian?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://id.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/is/messages.json b/browser/components/search/extensions/wikipedia/_locales/is/messages.json
deleted file mode 100644
index f722d88187de2f8fe2c6748595bc362fbc5128ee..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/is/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (is)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, the free encyclopedia"
-  },
-  "searchUrl": {
-    "message": "https://is.wikipedia.org/wiki/Kerfissíða:Leit"
-  },
-  "searchForm": {
-    "message": "https://is.wikipedia.org/wiki/Kerfissíða:Leit?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://is.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/it/messages.json b/browser/components/search/extensions/wikipedia/_locales/it/messages.json
deleted file mode 100644
index 2ca645740f8747d1c0234b5952f2d7fc9bc58f86..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/it/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (it)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, l'enciclopedia libera"
-  },
-  "searchUrl": {
-    "message": "https://it.wikipedia.org/wiki/Speciale:Ricerca"
-  },
-  "searchForm": {
-    "message": "https://it.wikipedia.org/wiki/Speciale:Ricerca?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://it.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ja/messages.json b/browser/components/search/extensions/wikipedia/_locales/ja/messages.json
deleted file mode 100644
index 7215e68768f0b974e234257a08b298551a6aa6a0..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ja/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (ja)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia - フリー百科事典"
-  },
-  "searchUrl": {
-    "message": "https://ja.wikipedia.org/wiki/特別:検索"
-  },
-  "searchForm": {
-    "message": "https://ja.wikipedia.org/wiki/特別:検索?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ja.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ka/messages.json b/browser/components/search/extensions/wikipedia/_locales/ka/messages.json
deleted file mode 100644
index c460a093e5e4c6b992c988969483577faa1307f6..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ka/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ვიკიპედია (ka)"
-  },
-  "extensionDescription": {
-    "message": "ვიკიპედია, თავისუფალი ენციკლოპედია"
-  },
-  "searchUrl": {
-    "message": "https://ka.wikipedia.org/wiki/სპეციალური:ძიება"
-  },
-  "searchForm": {
-    "message": "https://ka.wikipedia.org/wiki/სპეციალური:ძიება?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ka.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/kab/messages.json b/browser/components/search/extensions/wikipedia/_locales/kab/messages.json
deleted file mode 100644
index 3cf743b616fe51677f1e9a9016b3eea81a087cc1..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/kab/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (kab)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, tasanayt tilellit"
-  },
-  "searchUrl": {
-    "message": "https://kab.wikipedia.org/wiki/Uslig:Search"
-  },
-  "searchForm": {
-    "message": "https://kab.wikipedia.org/wiki/Uslig:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://kab.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/kk/messages.json b/browser/components/search/extensions/wikipedia/_locales/kk/messages.json
deleted file mode 100644
index 0844cca0d7e1832a14001842306ee0d9f3b21ce6..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/kk/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Уикипедия (kk)"
-  },
-  "extensionDescription": {
-    "message": "Уикипедия (kk)"
-  },
-  "searchUrl": {
-    "message": "https://kk.wikipedia.org/wiki/Арнайы:Іздеу"
-  },
-  "searchForm": {
-    "message": "https://kk.wikipedia.org/wiki/Арнайы:Іздеу?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://kk.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/km/messages.json b/browser/components/search/extensions/wikipedia/_locales/km/messages.json
deleted file mode 100644
index 0f0a0880e188a96ed560eac720d684b841e31d12..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/km/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "វីគីភីឌា (km)"
-  },
-  "extensionDescription": {
-    "message": "វីគីភីឌា សព្វ​វចនា​ធិប្បាយ​សេរី"
-  },
-  "searchUrl": {
-    "message": "https://km.wikipedia.org/wiki/ពិសេស:ស្វែងរក"
-  },
-  "searchForm": {
-    "message": "https://km.wikipedia.org/wiki/ពិសេស:ស្វែងរក?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://km.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/kn/messages.json b/browser/components/search/extensions/wikipedia/_locales/kn/messages.json
deleted file mode 100644
index 379ef20085a359a5cabe63397a37c8559a36234b..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/kn/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (kn)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, the free encyclopedia"
-  },
-  "searchUrl": {
-    "message": "https://kn.wikipedia.org/wiki/ವಿಶೇಷ:Search"
-  },
-  "searchForm": {
-    "message": "https://kn.wikipedia.org/wiki/ವಿಶೇಷ:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://kn.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/kr/messages.json b/browser/components/search/extensions/wikipedia/_locales/kr/messages.json
deleted file mode 100644
index 54296cac62bd7605c7ac9b5cfeb62b14fea5ea80..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/kr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "위키백과 (ko)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, the free encyclopedia"
-  },
-  "searchUrl": {
-    "message": "https://ko.wikipedia.org/wiki/특수기능:찾기"
-  },
-  "searchForm": {
-    "message": "https://ko.wikipedia.org/wiki/특수기능:찾기?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ko.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/lij/messages.json b/browser/components/search/extensions/wikipedia/_locales/lij/messages.json
deleted file mode 100644
index cb90db5e409950b6ed4c10fbb5a1c06c2ca37d6d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/lij/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (lij)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, l'enciclopedia libera"
-  },
-  "searchUrl": {
-    "message": "https://lij.wikipedia.org/wiki/Speçiale:Riçerca"
-  },
-  "searchForm": {
-    "message": "https://lij.wikipedia.org/wiki/Speçiale:Riçerca?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://lij.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/lo/messages.json b/browser/components/search/extensions/wikipedia/_locales/lo/messages.json
deleted file mode 100644
index 712746ec63169f11d148ce9979d584521e5fdd98..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/lo/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ວິກິພີເດຍ (lo)"
-  },
-  "extensionDescription": {
-    "message": "ວິກິພີເດຍ, ສາລານຸກົມເສລີ"
-  },
-  "searchUrl": {
-    "message": "https://lo.wikipedia.org/wiki/ພິເສດ:ຊອກຫາ"
-  },
-  "searchForm": {
-    "message": "https://lo.wikipedia.org/wiki/ພິເສດ:ຊອກຫາ?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://lo.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/lt/messages.json b/browser/components/search/extensions/wikipedia/_locales/lt/messages.json
deleted file mode 100644
index c061bcc5224c040242e0567aaf9f86b60380dd5f..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/lt/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (lt)"
-  },
-  "extensionDescription": {
-    "message": "Vikipedija, laisvoji enciklopedija"
-  },
-  "searchUrl": {
-    "message": "https://lt.wikipedia.org/wiki/Specialus:Paieška"
-  },
-  "searchForm": {
-    "message": "https://lt.wikipedia.org/wiki/Specialus:Paieška?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://lt.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ltg/messages.json b/browser/components/search/extensions/wikipedia/_locales/ltg/messages.json
deleted file mode 100644
index 0e02810ef3bfa3455485a8beb851bbc08e70598e..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ltg/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipedeja (ltg)"
-  },
-  "extensionDescription": {
-    "message": "Vikipēdija, breivuo eņciklopedeja"
-  },
-  "searchUrl": {
-    "message": "https://ltg.wikipedia.org/wiki/Seviškuo:Search"
-  },
-  "searchForm": {
-    "message": "https://ltg.wikipedia.org/wiki/Seviškuo:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ltg.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/lv/messages.json b/browser/components/search/extensions/wikipedia/_locales/lv/messages.json
deleted file mode 100644
index f73814b8574f752ecf93439d4e0a735b46afdebd..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/lv/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipēdija"
-  },
-  "extensionDescription": {
-    "message": "Vikipēdija, brīvā enciklopēdija"
-  },
-  "searchUrl": {
-    "message": "https://lv.wikipedia.org/wiki/Special:Search"
-  },
-  "searchForm": {
-    "message": "https://lv.wikipedia.org/wiki/Special:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://lv.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/mk/messages.json b/browser/components/search/extensions/wikipedia/_locales/mk/messages.json
deleted file mode 100644
index de7e06e1ac4a6a76e8a2b1eee2d440a6150c0e39..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/mk/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Википедија (mk)"
-  },
-  "extensionDescription": {
-    "message": "Википедија, слободната енциклопедија"
-  },
-  "searchUrl": {
-    "message": "https://mk.wikipedia.org/wiki/Специјална:Барај"
-  },
-  "searchForm": {
-    "message": "https://mk.wikipedia.org/wiki/Специјална:Барај?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://mk.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/mr/messages.json b/browser/components/search/extensions/wikipedia/_locales/mr/messages.json
deleted file mode 100644
index bd46dd83700c1078775a6cd8f8d3fac15ad4dbda..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/mr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "विकिपीडिया (mr)"
-  },
-  "extensionDescription": {
-    "message": "विकिपीडिया, मोफत माहितीकोष"
-  },
-  "searchUrl": {
-    "message": "https://mr.wikipedia.org/wiki/विशेष:शोधा"
-  },
-  "searchForm": {
-    "message": "https://mr.wikipedia.org/wiki/विशेष:शोधा?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://mr.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ms/messages.json b/browser/components/search/extensions/wikipedia/_locales/ms/messages.json
deleted file mode 100644
index c817e82c78216496a2af462a6facfcd6cb9aec41..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ms/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (ms)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, ensiklopedia bebas"
-  },
-  "searchUrl": {
-    "message": "https://ms.wikipedia.org/wiki/Khas:Gelintar"
-  },
-  "searchForm": {
-    "message": "https://ms.wikipedia.org/wiki/Khas:Gelintar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ms.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/my/messages.json b/browser/components/search/extensions/wikipedia/_locales/my/messages.json
deleted file mode 100644
index 62342d1b90ae0db0c7bde381b5db73667cc5831d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/my/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (my)"
-  },
-  "extensionDescription": {
-    "message": "အခမဲ့လွတ်လပ်စွယ်စုံကျမ်း"
-  },
-  "searchUrl": {
-    "message": "https://my.wikipedia.org/wiki/Special:Search"
-  },
-  "searchForm": {
-    "message": "https://my.wikipedia.org/wiki/Special:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://my.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ne/messages.json b/browser/components/search/extensions/wikipedia/_locales/ne/messages.json
deleted file mode 100644
index eb22344341e40739f29b3d6e036b102dca13ec4a..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ne/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "विकिपीडिया (ne)"
-  },
-  "extensionDescription": {
-    "message": "विकिपिडिया एक स्वतन्त्र विश्वकोष"
-  },
-  "searchUrl": {
-    "message": "https://ne.wikipedia.org/wiki/विशेष:Search"
-  },
-  "searchForm": {
-    "message": "https://ne.wikipedia.org/wiki/विशेष:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ne.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/nl/messages.json b/browser/components/search/extensions/wikipedia/_locales/nl/messages.json
deleted file mode 100644
index c2a810c2ae304ba1152f435f1ec2a510fa483c97..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/nl/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (nl)"
-  },
-  "extensionDescription": {
-    "message": "De vrije encyclopedie"
-  },
-  "searchUrl": {
-    "message": "https://nl.wikipedia.org/wiki/Speciaal:Zoeken"
-  },
-  "searchForm": {
-    "message": "https://nl.wikipedia.org/wiki/Speciaal:Zoeken?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://nl.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/oc/messages.json b/browser/components/search/extensions/wikipedia/_locales/oc/messages.json
deleted file mode 100644
index 3cadc3d68f0740c4b3e6ce1076cd095a0a7f2137..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/oc/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipèdia (oc)"
-  },
-  "extensionDescription": {
-    "message": "Wikipèdia, l'enciclopèdia liura"
-  },
-  "searchUrl": {
-    "message": "https://oc.wikipedia.org/wiki/Especial:Recèrca"
-  },
-  "searchForm": {
-    "message": "https://oc.wikipedia.org/wiki/Especial:Recèrca?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://oc.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/pa/messages.json b/browser/components/search/extensions/wikipedia/_locales/pa/messages.json
deleted file mode 100644
index dff38c2146fdf1437ba6ca55caf0b6ead4eef23c..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/pa/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (pa)"
-  },
-  "extensionDescription": {
-    "message": "ਵਿਕਿਪੀਡਿਆ, ਮੁਫ਼ਤ/ਮੁਕਤ ਸ਼ਬਦਕੋਸ਼"
-  },
-  "searchUrl": {
-    "message": "https://pa.wikipedia.org/wiki/ਖ਼ਾਸ:ਖੋਜੋ"
-  },
-  "searchForm": {
-    "message": "https://pa.wikipedia.org/wiki/ਖ਼ਾਸ:ਖੋਜੋ?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://pa.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/pl/messages.json b/browser/components/search/extensions/wikipedia/_locales/pl/messages.json
deleted file mode 100644
index 315aa0d9cbe106cce1627847f932c897abb91b4a..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/pl/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (pl)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, wolna encyklopedia"
-  },
-  "searchUrl": {
-    "message": "https://pl.wikipedia.org/wiki/Specjalna:Szukaj"
-  },
-  "searchForm": {
-    "message": "https://pl.wikipedia.org/wiki/Specjalna:Szukaj?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://pl.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/pt/messages.json b/browser/components/search/extensions/wikipedia/_locales/pt/messages.json
deleted file mode 100644
index 4beaa97acc887b4056db1f3efe0e8df9e504717c..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/pt/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (pt)"
-  },
-  "extensionDescription": {
-    "message": "Wikipédia, a enciclopédia livre"
-  },
-  "searchUrl": {
-    "message": "https://pt.wikipedia.org/wiki/Especial:Pesquisar"
-  },
-  "searchForm": {
-    "message": "https://pt.wikipedia.org/wiki/Especial:Pesquisar?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://pt.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/rm/messages.json b/browser/components/search/extensions/wikipedia/_locales/rm/messages.json
deleted file mode 100644
index 8258d5e4345167370c0f620125c210d42057f41b..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/rm/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (rm)"
-  },
-  "extensionDescription": {
-    "message": "Vichipedia, l'enciclopedia libra"
-  },
-  "searchUrl": {
-    "message": "https://rm.wikipedia.org/wiki/Spezial:Search"
-  },
-  "searchForm": {
-    "message": "https://rm.wikipedia.org/wiki/Spezial:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://rm.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ro/messages.json b/browser/components/search/extensions/wikipedia/_locales/ro/messages.json
deleted file mode 100644
index 48865fd547e44be6bb5a40433a1457f8c029d1cc..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ro/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (ro)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, enciclopedia liberă"
-  },
-  "searchUrl": {
-    "message": "https://ro.wikipedia.org/wiki/Special:Căutare"
-  },
-  "searchForm": {
-    "message": "https://ro.wikipedia.org/wiki/Special:Căutare?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ro.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ru/messages.json b/browser/components/search/extensions/wikipedia/_locales/ru/messages.json
deleted file mode 100644
index 569467691d7c64670a9efc619655cb6cbeef5d23..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ru/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Википедия (ru)"
-  },
-  "extensionDescription": {
-    "message": "Википедия, свободная энциклопедия"
-  },
-  "searchUrl": {
-    "message": "https://ru.wikipedia.org/wiki/Служебная:Поиск"
-  },
-  "searchForm": {
-    "message": "https://ru.wikipedia.org/wiki/Служебная:Поиск?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ru.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/si/messages.json b/browser/components/search/extensions/wikipedia/_locales/si/messages.json
deleted file mode 100644
index 0406ae728d716c081543feb5876478a4a58c6ba9..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/si/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (si)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, the free encyclopedia"
-  },
-  "searchUrl": {
-    "message": "https://si.wikipedia.org/wiki/විශේෂ:ගවේෂණය"
-  },
-  "searchForm": {
-    "message": "https://si.wikipedia.org/wiki/විශේෂ:ගවේෂණය?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://si.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/sk/messages.json b/browser/components/search/extensions/wikipedia/_locales/sk/messages.json
deleted file mode 100644
index 5c2f75f8b031ec4335a0b7f40e8732f2efeba409..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/sk/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipédia (sk)"
-  },
-  "extensionDescription": {
-    "message": "Wikipédia, slobodná a otvorená encyklopédia"
-  },
-  "searchUrl": {
-    "message": "https://sk.wikipedia.org/wiki/Špeciálne:Hľadanie"
-  },
-  "searchForm": {
-    "message": "https://sk.wikipedia.org/wiki/Špeciálne:Hľadanie?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://sk.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/sl/messages.json b/browser/components/search/extensions/wikipedia/_locales/sl/messages.json
deleted file mode 100644
index 7385a22034745f4ef132a8e2825c24f98bbdc647..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/sl/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedija (sl)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedija, prosta enciklopedija"
-  },
-  "searchUrl": {
-    "message": "https://sl.wikipedia.org/wiki/Posebno:Iskanje"
-  },
-  "searchForm": {
-    "message": "https://sl.wikipedia.org/wiki/Posebno:Iskanje?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://sl.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/sq/messages.json b/browser/components/search/extensions/wikipedia/_locales/sq/messages.json
deleted file mode 100644
index 68361d8ab2941ef963bd1555d9beff931d06fe5e..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/sq/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (sq)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, enciklopedia e lirë"
-  },
-  "searchUrl": {
-    "message": "https://sq.wikipedia.org/wiki/Speciale:Kërkim"
-  },
-  "searchForm": {
-    "message": "https://sq.wikipedia.org/wiki/Speciale:Kërkim?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://sq.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/sr/messages.json b/browser/components/search/extensions/wikipedia/_locales/sr/messages.json
deleted file mode 100644
index 50ebc0a197a1e042023d58eec79914fcdc191437..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/sr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Википедија (sr)"
-  },
-  "extensionDescription": {
-    "message": "Претрага Википедије на српском језику"
-  },
-  "searchUrl": {
-    "message": "https://sr.wikipedia.org/wiki/Посебно:Претражи"
-  },
-  "searchForm": {
-    "message": "https://sr.wikipedia.org/wiki/Посебно:Претражи?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://sr.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/sv-SE/messages.json b/browser/components/search/extensions/wikipedia/_locales/sv-SE/messages.json
deleted file mode 100644
index 1edc3db80d98cdd73c8eee60422936f45df29b9d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/sv-SE/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (sv)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, den fria encyklopedin"
-  },
-  "searchUrl": {
-    "message": "https://sv.wikipedia.org/wiki/Special:Sök"
-  },
-  "searchForm": {
-    "message": "https://sv.wikipedia.org/wiki/Special:Sök?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://sv.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ta/messages.json b/browser/components/search/extensions/wikipedia/_locales/ta/messages.json
deleted file mode 100644
index 54397603b028aaf85f3ef26476b3cd397b01879b..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ta/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "விக்கிப்பீடியா (ta)"
-  },
-  "extensionDescription": {
-    "message": "விக்கிப்பீடியா (ta)"
-  },
-  "searchUrl": {
-    "message": "https://ta.wikipedia.org/wiki/சிறப்பு:Search"
-  },
-  "searchForm": {
-    "message": "https://ta.wikipedia.org/wiki/சிறப்பு:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ta.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/te/messages.json b/browser/components/search/extensions/wikipedia/_locales/te/messages.json
deleted file mode 100644
index c474be12a76f9054599ddb91fd555916fd1b5ea3..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/te/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "వికీపీడియా (te)"
-  },
-  "extensionDescription": {
-    "message": "వికీపీడియా (te)"
-  },
-  "searchUrl": {
-    "message": "https://te.wikipedia.org/wiki/ప్రత్యేక:అన్వేషణ"
-  },
-  "searchForm": {
-    "message": "https://te.wikipedia.org/wiki/ప్రత్యేక:అన్వేషణ?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://te.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/th/messages.json b/browser/components/search/extensions/wikipedia/_locales/th/messages.json
deleted file mode 100644
index 3d6aeb07ca2cf65b552a6520093fb87ad9d6b50d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/th/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "วิกิพีเดีย"
-  },
-  "extensionDescription": {
-    "message": "วิกิพีเดีย สารานุกรมเสรี"
-  },
-  "searchUrl": {
-    "message": "https://th.wikipedia.org/wiki/พิเศษ:ค้นหา"
-  },
-  "searchForm": {
-    "message": "https://th.wikipedia.org/wiki/พิเศษ:ค้นหา?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://th.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/tl/messages.json b/browser/components/search/extensions/wikipedia/_locales/tl/messages.json
deleted file mode 100644
index d55b03131f97cba030b829fca7985e562b2e7482..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/tl/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (tl)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, ang malayang ensiklopedya"
-  },
-  "searchUrl": {
-    "message": "https://tl.wikipedia.org/wiki/Natatangi:Maghanap"
-  },
-  "searchForm": {
-    "message": "https://tl.wikipedia.org/wiki/Natatangi:Maghanap?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://tl.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/tr/messages.json b/browser/components/search/extensions/wikipedia/_locales/tr/messages.json
deleted file mode 100644
index 878b28ab68b245592aa262766b602ed07b6ef887..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/tr/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (tr)"
-  },
-  "extensionDescription": {
-    "message": "Vikipedi, özgür ansiklopedi"
-  },
-  "searchUrl": {
-    "message": "https://tr.wikipedia.org/wiki/Özel:Ara"
-  },
-  "searchForm": {
-    "message": "https://tr.wikipedia.org/wiki/Özel:Ara?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://tr.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/uk/messages.json b/browser/components/search/extensions/wikipedia/_locales/uk/messages.json
deleted file mode 100644
index 2749b86304bfa7ce4ea88702d57ecc1de8204453..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/uk/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Вікіпедія (uk)"
-  },
-  "extensionDescription": {
-    "message": "Вікіпедія, вільна енциклопедія"
-  },
-  "searchUrl": {
-    "message": "https://uk.wikipedia.org/wiki/Спеціальна:Пошук"
-  },
-  "searchForm": {
-    "message": "https://uk.wikipedia.org/wiki/Спеціальна:Пошук?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://uk.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/ur/messages.json b/browser/components/search/extensions/wikipedia/_locales/ur/messages.json
deleted file mode 100644
index dcc87e0c853cc5707ed0b05e6577594f97b669af..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/ur/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "ویکیپیڈیا (ur)"
-  },
-  "extensionDescription": {
-    "message": "ویکیپیڈیا آزاد دائرۃ المعارف"
-  },
-  "searchUrl": {
-    "message": "https://ur.wikipedia.org/wiki/خاص:تلاش"
-  },
-  "searchForm": {
-    "message": "https://ur.wikipedia.org/wiki/خاص:تلاش?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://ur.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/uz/messages.json b/browser/components/search/extensions/wikipedia/_locales/uz/messages.json
deleted file mode 100644
index 89a8f2a89bca5b0a803965ef479741ff86b16e40..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/uz/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Vikipediya (uz)"
-  },
-  "extensionDescription": {
-    "message": "Vikipediya, ochiq ensiklopediya"
-  },
-  "searchUrl": {
-    "message": "https://uz.wikipedia.org/wiki/Maxsus:Search"
-  },
-  "searchForm": {
-    "message": "https://uz.wikipedia.org/wiki/Maxsus:Search?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://uz.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/vi/messages.json b/browser/components/search/extensions/wikipedia/_locales/vi/messages.json
deleted file mode 100644
index c0844e4feb144c4968e3b7a9a11d3d2c048a3f43..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/vi/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (vi)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, bách khoa toàn thư mở"
-  },
-  "searchUrl": {
-    "message": "https://vi.wikipedia.org/wiki/Đặc_biệt:Tìm_kiếm"
-  },
-  "searchForm": {
-    "message": "https://vi.wikipedia.org/wiki/Đặc_biệt:Tìm_kiếm?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://vi.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/wo/messages.json b/browser/components/search/extensions/wikipedia/_locales/wo/messages.json
deleted file mode 100644
index 7efde3b1d0f479401d5e23652e3b2bb9d98008b6..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/wo/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (wo)"
-  },
-  "extensionDescription": {
-    "message": "Wikipedia, Jimbulang bu Ubbeeku bi"
-  },
-  "searchUrl": {
-    "message": "https://wo.wikipedia.org/wiki/Jagleel:Ceet"
-  },
-  "searchForm": {
-    "message": "https://wo.wikipedia.org/wiki/Jagleel:Ceet?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://wo.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/zh-CN/messages.json b/browser/components/search/extensions/wikipedia/_locales/zh-CN/messages.json
deleted file mode 100644
index 29047565a2431a451c9226f80ffbe5faeaf88c0d..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/zh-CN/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "维基百科"
-  },
-  "extensionDescription": {
-    "message": "维基百科,自由的百科全书"
-  },
-  "searchUrl": {
-    "message": "https://zh.wikipedia.org/wiki/Special:搜索"
-  },
-  "searchForm": {
-    "message": "https://zh.wikipedia.org/wiki/Special:搜索?search={searchTerms}&sourceid=Mozilla-search"
-  },
-  "suggestUrl": {
-    "message": "https://zh.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/_locales/zh-TW/messages.json b/browser/components/search/extensions/wikipedia/_locales/zh-TW/messages.json
deleted file mode 100644
index a0e8d880ea267cf5b4fcff59b9c95cf08f705743..0000000000000000000000000000000000000000
--- a/browser/components/search/extensions/wikipedia/_locales/zh-TW/messages.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extensionName": {
-    "message": "Wikipedia (zh)"
-  },
-  "extensionDescription": {
-    "message": "維基百科,自由的百科全書"
-  },
-  "searchUrl": {
-    "message": "https://zh.wikipedia.org/wiki/Special:搜索"
-  },
-  "searchForm": {
-    "message": "https://zh.wikipedia.org/wiki/Special:搜索?search={searchTerms}&sourceid=Mozilla-search&variant=zh-tw"
-  },
-  "suggestUrl": {
-    "message": "https://zh.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}"
-  },
-  "searchUrlGetParams": {
-    "message": "search={searchTerms}&sourceid=Mozilla-search&variant=zh-tw"
-  }
-}
\ No newline at end of file
diff --git a/browser/components/search/extensions/wikipedia/manifest.json b/browser/components/search/extensions/wikipedia/manifest.json
index 2f3e9aec3843869f5a7dad3505b9d21c16e42548..1bdf45ee3acba15b2c877a5726ca421069ed1f4e 100644
--- a/browser/components/search/extensions/wikipedia/manifest.json
+++ b/browser/components/search/extensions/wikipedia/manifest.json
@@ -1,6 +1,6 @@
 {
-  "name": "__MSG_extensionName__",
-  "description": "__MSG_extensionDescription__",
+  "name": "Wikipedia (en)",
+  "description": "Wikipedia, the Free Encyclopedia",
   "manifest_version": 2,
   "version": "1.0",
   "applications": {
@@ -9,7 +9,6 @@
     }
   },
   "hidden": true,
-  "default_locale": "en",
   "icons": {
     "16": "favicon.ico"
   },
@@ -18,11 +17,11 @@
   ],
   "chrome_settings_overrides": {
     "search_provider": {
-      "name": "__MSG_extensionName__",
-      "search_url": "__MSG_searchUrl__",
-      "search_form": "__MSG_searchForm__",
-      "suggest_url": "__MSG_suggestUrl__",
-      "search_url_get_params": "__MSG_searchUrlGetParams__"
+      "name": "Wikipedia (en)",
+      "search_url": "https://en.wikipedia.org/wiki/Special:Search",
+      "search_form": "https://en.wikipedia.org/wiki/Special:Search?search={searchTerms}&sourceid=Mozilla-search",
+      "suggest_url": "https://en.wikipedia.org/w/api.php?action=opensearch&search={searchTerms}",
+      "search_url_get_params": "search={searchTerms}&sourceid=Mozilla-search"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/browser/components/search/extensions/yahoo/favicon.ico b/browser/components/search/extensions/yahoo/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..9bd1d9f7c008c3f288c759f70b42a6f32bf55211
Binary files /dev/null and b/browser/components/search/extensions/yahoo/favicon.ico differ
diff --git a/browser/components/search/extensions/yahoo/manifest.json b/browser/components/search/extensions/yahoo/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..e1f04a373c2eaac2c60b4d1daa566b2a3db65187
--- /dev/null
+++ b/browser/components/search/extensions/yahoo/manifest.json
@@ -0,0 +1,28 @@
+{
+  "name": "Yahoo",
+  "description": "Yahoo Search",
+  "manifest_version": 2,
+  "version": "1.0",
+  "applications": {
+    "gecko": {
+      "id": "yahoo@search.mozilla.org"
+    }
+  },
+  "hidden": true,
+  "icons": {
+    "16": "favicon.ico"
+  },
+  "web_accessible_resources": [
+    "favicon.ico"
+  ],
+  "chrome_settings_overrides": {
+    "search_provider": {
+      "name": "Yahoo",
+      "search_url": "https://search.yahoo.com/yhs/search",
+      "search_form": "https://search.yahoo.com/yhs/search?p={searchTerms}&ei=UTF-8&hspart=mozilla",
+      "search_url_get_params": "p={searchTerms}&ei=UTF-8&hspart=mozilla",
+      "suggest_url": "https://search.yahoo.com/sugg/ff",
+      "suggest_url_get_params": "output=fxjson&appid=ffd&command={searchTerms}"
+    }
+  }
+}
diff --git a/browser/components/search/extensions/youtube/favicon.ico b/browser/components/search/extensions/youtube/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..977887dbbb8407afcc5c1a9c42109560826fd1a7
Binary files /dev/null and b/browser/components/search/extensions/youtube/favicon.ico differ
diff --git a/browser/components/search/extensions/youtube/manifest.json b/browser/components/search/extensions/youtube/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..6fbf8745bac2a5a19cb5407c08747a0a3b630ee4
--- /dev/null
+++ b/browser/components/search/extensions/youtube/manifest.json
@@ -0,0 +1,26 @@
+{
+  "name": "YouTube",
+  "description": "YouTube - Videos",
+  "manifest_version": 2,
+  "version": "1.0",
+  "applications": {
+    "gecko": {
+      "id": "youtube@search.mozilla.org"
+    }
+  },
+  "hidden": true,
+  "icons": {
+    "16": "favicon.ico"
+  },
+  "web_accessible_resources": [
+    "favicon.ico"
+  ],
+  "chrome_settings_overrides": {
+    "search_provider": {
+      "name": "YouTube",
+      "search_url": "https://www.youtube.com/results?search_query={searchTerms}&search=Search",
+      "search_form": "https://www.youtube.com/index",
+      "suggest_url": "https://suggestqueries.google.com/complete/search?output=firefox&ds=yt&q={searchTerms}"
+    }
+  }
+}
\ No newline at end of file
diff --git a/tbb-tests/browser_tor_omnibox.js b/tbb-tests/browser_tor_omnibox.js
new file mode 100644
index 0000000000000000000000000000000000000000..e18b2a84a3d87125f042b8d52a84f46b672b9098
--- /dev/null
+++ b/tbb-tests/browser_tor_omnibox.js
@@ -0,0 +1,14 @@
+// # Test Tor Omnibox
+// Check what search engines are installed in the search box.
+
+function test() {
+  // Grab engine IDs.
+  let browserSearchService = Components.classes["@mozilla.org/browser/search-service;1"]
+                             .getService(Components.interfaces.nsIBrowserSearchService),
+      engineIDs = browserSearchService.getEngines().map(e => e.identifier);
+
+  // Check that we have the correct engines installed, in the right order.
+  is(engineIDs[0], "ddg", "Default search engine is duckduckgo");
+  is(engineIDs[1], "youtube", "Secondary search engine is youtube");
+  is(engineIDs[2], "google", "Google is third search engine");
+}