Games & Entertainment
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 material resources (CPU, RAM) if your PC doesn't easily support HTML5 videos. Try it!
YouTube High Definition Featured
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.
One of the best extensions for YouTube™. All the features you need to make YouTube™ more awesome!
a download manager with multi-threading support
YouTube™ Flash-HTML5 Featured
Play YouTube™ Videos in Flash or HTML5 Player
Fasterfox Requires Restart
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!
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.
Google™ Translator Featured
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.
YouTube Enhancer Plus Requires Restart Featured
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.
With Google™ Hangouts you can connect with friends and family while you browse internet. It brings conversations to life with photos, emoji, and even group video calls for free!
Enjoy the followings games
Automatically play YouTube™ videos in HD or any other preferred format, and disable autoplay for videos loaded in background tabs.
Switch All YouTube™ Videos to Flash® Player
Whatsapp Web Messenger brings WhatsApp right into your browser to chat with your friends.
Tilt 3D Requires Restart
A WebGL-based 3D visualization of a webpage.
YouTube No Buffer (Stop Autoplaying) Featured
A bulletproof approach to prevent YouTube from buffering videos
YouTube Anywhere Player Featured
Watch videos anywhere in cinema mode without leaving the website you're on.
Jocly gives access to over 100 board games, for playing alone against the computer or remotely against someone else. It provides a 3D interface for most games and video chat with the opponent in the 3D scene.