Bug 1790100 - Only initialize CookieBanner window actors for http/s scheme. r=timhuang

Depends on D157676

Differential Revision: https://phabricator.services.mozilla.com/D158078

toolkit/modules/ActorManagerParent.jsm

@@ -213,7 +213,9 @@ let JSWINDOWACTORS = {
         DOMContentLoaded: {},
       },
     },
-
+    // We only handle cookie banners for HTTP/S scheme. Avoid initializing
+    // actors for other schemes.
+    matches: ["https://*/*", "http://*/*"],
     allFrames: true,
     enablePreference: "cookiebanners.bannerClicking.enabled",
   },