You can use Profiles¹ for that sort of stuff. about:config² is good for a somewhat complete list of components that can be enabled/disabled. 1: https://support

You can use Profiles¹ for that sort of stuff. about:config² is good for a somewhat complete list of components that can be enabled/disabled. 1: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles https://support.mozilla.org/en-US/kb/profile-manager-create-... 2: about:config?filter=.enabled