Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseMost Popular All »
- 1. DOM Inspector 20,646 users
- 2. ChatZilla 20,175 users
- 3. globalChrome.css 2,195 users
- 4. Auto Password Registerer 2,191 users
- 5. MinimizeToTray revived 2,098 users
- 6. FireTray 2,044 users
- 7. JavaScript Debugger 1,943 users
- 8. FlashGot Mass Downloader 900 users
- 9. Toolbar Buttons 696 users
- 10. StartupMaster 665 users
Up & Coming Extensions See all »
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A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...2,044 users -
Registers given passwords to Firefox/Thunderbird's password manager automatically.2,191 users -
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.1,943 users -
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.20,646 users
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
