Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
76,822 users
PopUpOFF
Removes and prevents popups, overlays and cookie notifications, other tools do not. Enjoy the original look of the internet.
24,852 users
Block Site
A customizable, password-protected website blocker and redirector.
70,848 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
2,262,076 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.
68,592 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
432,639 users
Privacy Badger
Automatically learns to block invisible trackers.
1,222,404 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
264,408 users
Stylebot
Change the appearance of the web instantly
7,356 users
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
105,235 users
Gesturefy
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
96,377 users
Tree Style Tab
Show tabs like a tree.
198,591 users