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 25,576 users
- 2. ChatZilla 23,900 users
- 3. ReminderFox 16,453 users
- 4. StartupMaster 15,995 users
- 5. JavaScript Debugger 14,608 users
- 6. MinimizeToTray revived 13,966 users
- 7. Mailbox Alert 13,915 users
- 8. FireTray 12,792 users
- 9. Open Google Calendar 12,089 users
- 10. Toolbar Buttons 8,387 users
Up & Coming Extensions See all »
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Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)12,089 users -
Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.1,063 users -
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 ...12,792 users -
Open With can open your web links in any browser installed on your computer.1,233 users -
Extends the function of the drag-and-drop mouse gesture so that it can be used to load URLs, do a web search of selected text on a page, or save an image on a page. The successor to Super DragAndGo.24 users
Featured Themes See all »
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
