Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
26.675 users
Default Bookmark Folder
Allows you to choose the default bookmark location folder and quickly bookmark pages via a dedicated icon.
22.589 users
Tab2QR
Send the page you are currently viewing to your mobile device. QR codes are generated instantly in browser and never leave your computer. Implemented with WebExtensions API and compatible with Firefox 57+.
6.931 users
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
63.657 users
Gesturefy
Customizable mouse gesture add-on, which supports over 60 different commands and additional features like rocker and wheel gestures.
121.259 users
Clippings
Save frequently-entered text for pasting later.
38.145 users
Tomato Clock
Tomato Clock is a simple browser extension for managing your productivity.
15.611 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.
6.208 users
Enhancer for YouTube™
Tons of features to improve your user experience on YouTube™.
514.003 users
Turn Off the Lights
La pàgina sencera s'enfosquirà, així podrà veure els vídeos com si fos al cinema.
43.314 users
Iridium for YouTube
YouTube with more freedom
15.480 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!)
16.682 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.
12.588 users
RSSPreview
Preview RSS feeds in browser
4.502 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
2.971 users
mPage
Simple dashboard-like RSS feed reader.
699 users