Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Dark Background and Light Text
Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.
29,415 users
GIPHY for Firefox
Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click!
7,240 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
10,451 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
95,940 users
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
112,178 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
723,790 users
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
64,108 users
Adaptive Tab Bar Color
Changes the color of Firefox theme to match the website’s appearance.
40,287 users
Tranquility Reader
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
42,574 users
Awesome Screenshot & Screen Recorder
Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.
110,493 users