Media Player for YouTube™ provides a comprehensive player UI to allow you to control YouTube playback through Firefox toolbar panel, which is very useful if you're watching YouTube while reading other websites. Some Features: 1. Set preferred video playback volume for all videos 2. Control auto-play behavior of the YouTube player 3. Play a single video or playlist in loop-mode 4. Change video player theme color (see options page) 5. Integrated with YouTube account Playlist (sign-in required, see Options page)