Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,531,403 users
YouTube NonStop
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!
140,995 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
156,775 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
86,035 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.
106,938 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
673,226 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
1,791,362 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
1,804 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
2,010 users
Show Video Controls for Firefox
Automatically enables video controls when playing html webm videos.
2,291 users
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
49,694 users