Bug 1844652 - Part 2: Enable dom.serviceWorkers.enabled in StaticPrefList r=dom-worker-reviewers,geckoview-reviewers,smaug,m_kato

Depends on D184149

Differential Revision: https://phabricator.services.mozilla.com/D184151

browser/app/profile/firefox.js

@@ -2136,8 +2136,6 @@ pref("reader.errors.includeURLs", true);
 
 pref("view_source.tab", true);
 
-pref("dom.serviceWorkers.enabled", true);
-
 // These are the thumbnail width/height set in about:newtab.
 // If you change this, ENSURE IT IS THE SAME SIZE SET
 // by about:newtab. These values are in CSS pixels.

mobile/android/app/mobile.js

@@ -341,8 +341,6 @@ pref("layout.accessiblecaret.hapticfeedback", true);
 // a smarter phone-number selection for direct-dial ActionBar action.
 pref("layout.accessiblecaret.extend_selection_for_phone_number", true);
 
-pref("dom.serviceWorkers.enabled", true);
-
 // Allow service workers to open windows for a longer period after a notification
 // click on mobile.  This is to account for some devices being quite slow.
 pref("dom.serviceWorkers.disable_open_click_delay", 5000);
@@ -357,4 +355,4 @@ pref("media.navigator.permission.device", true);
 
 // Allow system add-on updates
 pref("extensions.systemAddon.update.url", "https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml");
-pref("extensions.systemAddon.update.enabled", true);
+pref("extensions.systemAddon.update.enabled", true);

modules/libpref/init/StaticPrefList.yaml

@@ -3873,7 +3873,7 @@
 
 - name: dom.serviceWorkers.enabled
   type: RelaxedAtomicBool
-  value: false
+  value: true
   mirror: always
 
 - name: dom.serviceWorkers.navigationPreload.enabled