To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
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.
YouTube ALL HTML5 No Restart Featured
Play all videos on youtube without flash in your preferred size using only HTML5.
Saved Password Editor Featured
Adds the ability to create and edit entries in the password manager.
Password Tags Featured
Adds metadata and sortable tags to the password manager.
— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
Check out my new project, FireSSH!
Session Manager No Restart Featured
Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
Pray Times! Featured
Display daily Muslim prayer times.
Web2PDF Converter Featured
Web page to PDF conversion tool
Private Tab No Restart Featured
Adds private tabs.
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.
Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).
Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web ...
Copy Plain Text 2 Featured
Copies text without formatting
Web Developer Featured
The Web Developer extension adds various web developer tools to the browser.
Pearltrees No Restart Featured
Pearltrees lets you organize all your interests.
User Agent Switcher Featured
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
FireTube (Youtube Music Player) No Restart Featured
Listen to free, unlimited music with FireTube.
Simply search the artist or song of your choice and enjoy.
Take FireTube on-the-go with the Android app.
Ghostery No Restart Featured
Enjoy a faster, safer and cleaner browsing experience.