Extensions
Explore powerful tools and features to customise Firefox and make the browser all your own.
Block Site
A customizable, password-protected website blocker and redirector.
73,332 users
DownThemAll!
The Mass Downloader for your browser
200,298 users
Livemarks
Get auto-updated RSS feed bookmark folders.
13,154 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
13,063 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.
105,622 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
606,017 users
Privacy Badger
Automatically learns to block invisible trackers.
1,796,365 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
9,301,760 users
Port Authority
Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts.
5,922 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist
71,261 users
CanvasBlocker
Alters some JS APIs to prevent fingerprinting.
35,463 users
Clippings
Save frequently-entered text for pasting later.
12,390 users