Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Decentraleyes
Protects you against tracking through "free", centralised, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
174,886 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
9,240 users
Search by Image
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
69,172 users
Gesturefy
Customizable mouse gesture add-on, which supports over 60 different commands and additional features like rocker and wheel gestures.
115,241 users
Impulse Blocker
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can pause or turn off the blocker quickly. Completely open source.
6,337 users
Turn Off the Lights
The entire page will be fading to dark, so you can watch the video as if you were in the cinema.The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond.
42,609 users
SoundFixer
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
16,607 users
Brief
Brief makes reading RSS feeds as easy and intuitive as it gets. Designed to have exactly the right set of features, it is powerful and simple at the same time. Feeds are presented on a seamless, interactive page which let's you bookmark and tag items with a single click.
12,002 users
