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Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Theme Font & Size Changer No Restart Featured
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.
Menu Wizard Featured
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Undo Closed Tabs Button Featured
Tired of going to History -> Recently Closed Tabs just to undo a closed tab? Then this extension is for you!
This extension allows you to undo closed tabs via a toolbar button or the right-click context menu.
Slim Add-ons Manager No Restart Featured
The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.
OmniSidebar No Restart Featured
Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!
NoSquint allows you to adjust the text-only and full-page (both text and images) zoom levels as well as color settings both globally (for all sites) and per site.
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
Forecastfox (fix version) Featured
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Now Available for: Firefox, Thunderbird and SeaMonkey!
Lightweight Themes Manager No Restart Featured
Manage your installed personas (lightweight themes).
Cleanest Addon Manager No Restart Featured
Cleanup your Addon Manager
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.
FindBar Tweak No Restart Featured
Between simple tweaks such as placing the findbar in the top corner, to the powerful "Find in All Tabs" tool, it has everything to make the Find Toolbar a powerful and accessible research tool!
The Addon Bar (Restored) No Restart Featured
Gives you a place to put all your add-on buttons without over-crowding the navigation bar.
Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).
Integrated Inbox for Gmail and Google Apps No Restart Featured
Tired of having multiple tabs open just to view your favorite Google services and other Apps like Feedly, Evernote, Twitter and more? Now you can see them right from your Gmail Inbox.
Install now or visit www.integratedinbox.com for more info.
Prevent Tab Overflow No Restart Featured
Make sure your tabs stay visible all the time.
Tab Mix Plus Featured
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
Webmail Ad Blocker No Restart Featured
Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
Beyond Australis No Restart Featured
Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!
New Tab Tools No Restart Featured
Customizes the new tab page. Add more tiles. Add the launcher from Firefox start. Have a background image. Set new tile images and titles. See recently closed tabs. And more...