Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Privacy Possum
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
95,552 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
121,408 users
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
40,710 users
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
352,474 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
645,386 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.
204,083 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
55,000 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
184,589 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
548,627 users
