Bug 31563: force reloading search extensions if extensions.enabledScopes has changed

toolkit/components/search/SearchService.jsm

@@ -975,6 +975,7 @@ SearchService.prototype = {
     let locale = Services.locale.requestedLocale;
     let buildID = Services.appinfo.platformBuildID;
     let appVersion = Services.appinfo.version;
+    let enabledScopes = Services.prefs.getIntPref("extensions.enabledScopes", -1);
 
     // Allows us to force a cache refresh should the cache format change.
     cache.version = SearchUtils.CACHE_VERSION;
@@ -988,6 +989,10 @@ SearchService.prototype = {
     cache.appVersion = appVersion;
     cache.locale = locale;
 
+    // Bug 31563: we want to force reloading engines if extensions.enabledScopes
+    // pref changes
+    cache.enabledScopes = enabledScopes;
+
     if (gModernConfig) {
       cache.builtInEngineList = this._searchOrder;
       // For built-in engines we don't want to store all their data in the cache
@@ -1049,7 +1054,8 @@ SearchService.prototype = {
       !cache.engines ||
       cache.version != SearchUtils.CACHE_VERSION ||
       cache.locale != Services.locale.requestedLocale ||
-      cache.buildID != buildID;
+      cache.buildID != buildID ||
+      cache.enabledScopes != Services.prefs.getIntPref("extensions.enabledScopes", -1);
 
     let enginesCorrupted = false;
     if (!rebuildCache) {