Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
10,106,177 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
75,471 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
23,988 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
85,468 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.
110,978 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
684,826 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
26,590 users
PhotoShow
Hover to zoom and view high-definition images. Instantly enlarge visuals, crafted for all your favorite websites—and for you.
8,839 users
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
35,135 users
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
26,424 users
