Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
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!
6,654 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
6,894 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
18,035 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
110,436 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.
106,765 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
743,748 users
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
33,606 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
19,883 users
Turn Off the Lights for Firefox
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. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
64,566 users
