Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Port Authority
Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts.
18,625 users
Clippings
Save frequently-entered text for pasting later.
10,490 users
Livemarks
Get auto-updated RSS feed bookmark folders.
11,567 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
1,718,755 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
9,346 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
89,353 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.
99,927 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
661,911 users
Image Max URL
Finds larger/original versions of images (supporting 10,000+ websites), including a powerful media popup feature
22,970 users
Sink It for Reddit
Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!
12,625 users
Notefox: websites notes
Take notes on every website in a smart and simple way!
12,775 users
Show Video Controls for Firefox
Automatically enables video controls when playing html webm videos.
3,595 users