This makes some previously hidden prefs visible. This is required in order to perform sone WebExtension security checks off-main-thread. Differential Revision: https://phabricator.services.mozilla.com/D163037
This makes some previously hidden prefs visible. This is required in order to perform sone WebExtension security checks off-main-thread. Differential Revision: https://phabricator.services.mozilla.com/D163037