Explore powerful tools and features to customize Firefox and make the browser all your own.
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
Tabs tree and bookmarks in sidebar with advanced containers configuration.
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
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
A secure and free password manager for all of your devices.
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.
Automatically learns to block invisible trackers.
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive․is, Google, Bing, Yandex, Gigablast, WebCite, Sogou, Memento, Naver and Yahoo Japan.
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.
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.