Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
Makes a Web Page readable.
Prevent tabs opened by a hyperlink from hijacking the previous tab by adding the rel=noopener attribute to all hyperlinks (excluding same-domain hyperlinks).
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.
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
Finally, an efficient blocker. Easy on CPU and memory.
The best security you can get in a web browser! Allow active content to run only from sites you trust, and protect yourself against XSS other web security exploits. Disabled and can't reinstall? https://tinyurl.com/moz-ext-cert
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
A secure and free password manager for all of your devices.
The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more.
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically