Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
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.
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically
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.