Another extension to the rescue after a regressive Firefox UI change Rated 5 out of 5 stars
Thank you so much for writing this -- this is a much cleaner solution than the userChrome.css-editing hack (which I almost resigned myself to after failing to find any about:config setting for this, and then failing to find this add-on with my first set of search keywords). Also much appreciated was not having to restart my large Firefox session on installation (first add-on I've come across not requiring this).
It really sucks that so many software vendors have been focused on removing options and useful features from their UIs in the past few years, but at least Firefox's add-on architecture allows extensions like this one, Noise, and Status-4-Evar to enable users to reverse wrongheaded decisions like this.
Thanks for installing this. You should also check out my other addons from https://addons.mozilla.org/en-US/firefox/user/5116362/