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 20,876,915 users
- 2. Video DownloadHelper 4,632,298 users
- 3. NoScript Security Suite 2,166,185 users
- 4. Firebug 2,087,284 users
- 5. Easy Screenshot 1,571,291 users
- 6. uBlock Origin 1,544,736 users
- 7. Ghostery 1,441,194 users
- 8. DownThemAll! 1,274,747 users
- 9. Greasemonkey 1,254,145 users
- 10. Download YouTube Videos as MP4 1,112,747 users
Featured Extensions See all »
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FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!This add-on is not compatible with your version of Firefox because of the following:
30,639 users -
Extended Cookie Manager - Keep only wanted cookies.This add-on is not compatible with your version of Firefox because of the following:
15,257 users -
Weather Forecast Plus is the easiest way to check the weather while you browse internetThis add-on is not compatible with your version of Firefox because of the following:
30,481 users -
Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.This add-on is not compatible with your version of Firefox because of the following:
110,228 users -
Play all videos on youtube without flash in your preferred size using only HTML5.This add-on is not compatible with your version of Firefox because of the following:
126,124 users -
COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOXThis add-on is not compatible with your version of Firefox because of the following:
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.336,315 users
Up & Coming Extensions See all »
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Access your Identity Safe Vault, which remembers your usernames and passwords for single-click access to your favorite sites.This add-on is not compatible with your version of Firefox because of the following:
12,286 users -
YouTube Video Player Speed play YouTube videos in whatever speed you wantThis add-on is not compatible with your version of Firefox because of the following:
7,917 users -
Capture browser events for the Context Graph Recommendation Engine.This add-on is not compatible with your version of Firefox because of the following:
1,143 users -
The Mozilla Firefox Educational ToolThis add-on is not compatible with your version of Firefox because of the following:
1,296 users -
A Simple Addon Just Right Click on any Video and Choose Download Mp3
This add-on is not compatible with your version of Firefox because of the following:
4,940 users -
Save anything on the web to OneNote. Clip it to OneNote, organize and edit it, then access it from any device.This add-on is not compatible with your version of Firefox because of the following:
972 users
Featured Themes See all »
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
