Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29+ (Windows / MacOSX / Linux).
All builds & changelogs on versions page!
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
Gives you a place to put all your add-on buttons without over-crowding the navigation bar.
Allows to customize or disable most of the shortcuts offered by Firefox. This add-on does *not* allow to add new shortcuts, but it might help you discover new ones.
Piece together all of your add-on buttons and extras into your browser window in exactly the way you want them!
Makes new tab page show the search and toolbar fields from the defualt Firefox homepage. Sets the current home page to use the new tab page.
Keep your menus in check by filtering out items you never use.
Automatically shows the sidebar when the mouse cursor touches the left window border, and closes it when the cursor is over the web page.
Personalize your Firefox Title Bar! Anything placed on Menu Bar will be moved to Title Bar.
Lightweight add-on to create toolbar buttons that launch various external applications.
Adds a Tools menu button next to the new orange Firefox 4 menu button.
The development of this addon is currently suspended. In the meantime, you can give a try to Puzzle Toolbars for an updated experience compatible with Australis.