Explore powerful tools and features to customize Firefox and make the browser all your own.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
Automatically learns to block invisible trackers.
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
Adds keyboard shortcut Ctrl+1 to switch to the first tab, Ctrl+2 to switch to the second, and so on. Ctrl+9 switches to the last tab.
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.
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
Turn off the lights for the web browser with the Dark Mode extension!