Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
FoxyProxy Standard
FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.
202,902 users
Worldwide Radio
Listen to live radio stations from around the world!
29,982 users
Imagus
Enlarge thumbnails, and show images/videos from links with a mouse hover.
70,167 users
Image Search Options
Image Search Options provides a set of highly customizable reverse image search context menu options.
48,058 users
Gesturefy
Customizable mouse gesture add-on, which supports over 60 different commands and additional features like rocker and wheel gestures.
119,690 users
Clippings
Save frequently-entered text for pasting later.
36,487 users
Tomato Clock
Tomato Clock is a simple browser extension for managing your productivity.
15,346 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.
6,164 users
Enhancer for YouTube™
Tons of features to improve your user experience on YouTube™.
510,553 users
Turn Off the Lights
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. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
43,067 users
Iridium for YouTube
YouTube with more freedom
15,414 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!)
16,565 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.
12,406 users
RSSPreview
Preview RSS feeds in browser
4,414 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
2,911 users
mPage
Simple dashboard-like RSS feed reader.
686 users