Enhancer for YouTube - Tons of features to improve your user experience on YouTube™!
Ytmp3.cc - By using our converter you can easily convert YouTube videos to mp3 (audio) or mp4 (video) files and download them for free - this service works for computers, tablets and mobile devices.
ImprovedTube - Allows you to improve and enhance Youtube visually or enable dozens of new features permanently or...
VidToMP3.com - VidToMP3.
Iridium by ParticleCore - Iridium is an extension built to improve the user experience on the new YouTube Material layout.
OnlineVideoConverter.com - OnlineVideoConverter.