Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can pause or turn off the blocker quickly. Completely open source.
Make the browser forget website data (like cookies, local storage, etc.), except for the data you want to keep by adding domains to a whitelist, graylist, blacklist, or redlist.
Stream just the audio from YouTube to save bandwidth and battery life
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.
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