FFCompact is a simple userChrome.css
stylesheet that removes all the horrible padding in the navigation bar and the title bar on the latest MacOS version of Firefox. It is untested on other operating systems.
Enjoy!
Navigate to about:config
in the address bar and accept the risks. Search for toolkit.legacyUserProfileCustomizations.stylesheets
and toggle it to true
(by double clicking on it).
Put userChrome.css
in ~/Library/Application Support/Firefox/Profiles/<ProfileID>/chrome
and start Firefox or restart Firefox if it is running.