Iridium by ParticleCore - Iridium is an extension built to improve the user experience on the new YouTube Material layout.
FLVto - How to convert YouTube to mp3. Copy a link to YouTube video. Paste that link into an Input Field at Flvto Converter website. Choose a file format. Press Convert to get mp3 file .
ImprovedTube - Allows you to improve and enhance Youtube visually or enable dozens of new features permanently or...
2conv.com - 2conv.com is a simple yet powerful online video converter and downloader that allows you to download any YouTube videos in Mp3 quickly.
Enhancer for YouTube - Tons of features to improve your user experience on YouTube™!
Online video converter - Video conversion tool to convert a video link or file to various formats.