Games & Entertainment
YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Tons of features to improve your user experience on YouTube™.
A very lightweight add-on that allows you to watch YouTube™ videos using Flash® Player instead of the default HTML5 player. The Flash® Player will consume less CPU and RAM resources if your device doesn't easily support HTML5 videos. Try it!
Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.
Fasterfox Requires Restart
STILL WORKS FLAWLESSLY AS OF 8-21-2017
The One; The Original Fasterfox Gives performance & network tweaks for Firefox. Fasterfox makes your browsing so much faster!
Make your Sites Faster than a Fox with Fasterfox for FireFox!
Play YouTube™ Videos in Flash or HTML5 Player
AdBeaver is a free service for you to get a little more out of your web surfing. You surf the web and earn valuable AdCoins for every ad shown on your screen. AdCoins can be cashed out via paypal, gift cards or donated to a charitable cause.
Easily connect with friends and family while you browse internet. This add-on brings conversations to life with photos, emoji, and even group video calls!
a download manager with multi-threading support
YouTube Enhancer Plus Requires Restart
Improve your watching experience! Ad Blocker, Autoplay Manager, Auto HD, Auto Replay, Cinema Mode, and more.
Helps users access their web services while travelling outside mainland China.
Adds a context menu item to send audio/video streams directly to VLC media player
Right click YouTube video links on any websites, download it from context menu. Multi formats(mp4 flv 3gp), easy to use and fast to response.
Automatically play YouTube™ videos in HD or any other preferred format, and disable autoplay for videos loaded in background tabs.
Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.
Web Messenger for WhatsApp™ brings web messenger right into your browser to chat with your friends.
Tilt 3D Requires Restart
A WebGL-based 3D visualization of a webpage.
Download YouTube videos in all available formats and extract the original audio files
IMDB Search Requires Restart
Select some text, right-click and choose "IMDB Search" in the menu, a new tab will open with the searched text.
AntiGameOrigin - the other OGame experience for all communities.