PrefBar

Rated 5 out of 5 stars

by Mark on Oct. 25, 2015 · permalink

Although I'm sure this extension can do much more, I personally am using it to toggle certain about:config settings, which can be very handy. It can run as a menu rather than the full bar (see second screenshot) so it's not at all intrusive. This has replaced multiple extensions for me (a JavaScript toggle, for example) with just a single button.