Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
43 584 users
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.
410 743 users
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
98 896 users
Removes the annoying link-conversion at Google Search / maps / ...
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.
215 735 users
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
628 749 users
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
5 209 056 users
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
184 725 users
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
770 666 users
Automatically learns to block invisible trackers.
1 048 745 users