Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
1,286 users
Show Video Controls for Firefox
Automatically enables video controls when playing html webm videos.
1,991 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
201,847 users
Unhook: Remove YouTube Recommended Videos Comments
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions.
114,875 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
85,098 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.
109,291 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
678,235 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
26,865 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
692 users
PhotoShow
Hover to zoom and view high-definition images. Instantly enlarge visuals, crafted for all your favorite websites—and for you.
9,536 users
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
37,225 users
Immersive Translate - Translate Website & PDF
Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual
75,610 users