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. Adblock Plus 13,983,487 users
- 2. uBlock Origin 3,879,606 users
- 3. Video DownloadHelper 3,652,971 users
- 4. Easy Screenshot 2,349,142 users
- 5. NoScript Security Suite 1,718,960 users
- 6. Cisco WebEx Extension 1,001,633 users
- 7. Ghostery 970,663 users
- 8. DownThemAll! 919,253 users
- 9. Greasemonkey 853,202 users
- 10. Flash Video Downloader - YouTube HD Download [4K] 732,499 users
Featured Extensions See all »
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The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.617,992 users -
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.15,945 users -
Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. Make donation for us http://www.paypal.me/hoangthanh. Thank you!7,221 users -
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.61,069 users -
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs.21,525 users
Up & Coming Extensions See all »
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WebExtension ready adblocker based on the GPLv3-licensed codebase of Adblock Plus.1,889 users -
#1 Firefox add-on to block annoying popups, popunders & overlays in an easy & effective way. Browse without interference on all sites.8,800 users -
Pouch automatically finds the best voucher codes, coupons, discounts, deals and promo codes as you shop online.1,051 users
Featured Themes See all »
Featured Collections See all »
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Password Managers
Enjoy better security and more convenience with an excellent password manager.
6 add-ons · 316 followers -
Bookmark Managers
Customize and re-organize the way you manage your bookmarks.
8 add-ons · 207 followers -
Dynamic Media Downloaders
There are better ways to download video, images & more.
9 add-ons · 91 followers
To create your own collections, you must have a Mozilla Add-ons account.
