Explore powerful tools and features to customize Firefox and make the browser all your own.
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
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.
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!
The best way to see the weather right in your browser. Easier than looking outside!
Remove tracking elements from URLs.