Download YouTube videos in all available formats and extract the original audio files
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.
Play YouTube™ Videos in Flash or HTML5 Player
Enhances the Google Play Store™ with various features. The add-on will add optional APKMirror, Android Police, and Appbrain buttons to all Play Store app pages. Additionally, TGPS will tell you if an app you're looking at offers a beta program.
Adds Steam Database link across Steam Community and Store.
A new friend in every new tab.
Tons of features to improve your user experience on YouTube™.
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
Video Downloader Plus enables you to download SD and HD videos if the extension can download them.
An easy-to-use and lite App for Spotify Music Player.
Draw shapes, lines, and add text to live web pages and take screenshot.