*** GREAT FOR VEVO YOUTUBE MUSIC VIDEOS ***
A while back Youtube downloaders stopped working for 720p/1080p quality due to separating the video and audio streams. Switched to this one, donated, and now I get high quality 720p video/audio music videos by the hundreds that I shuffle play on all my devices. Amazingly, this extension takes the HQ video and HQ audio and remuxes them together and then lets you download. Tried a few others and their video quality was poor (lots of pixelation) as they re-encoded. This one appears to simply remux/join the original video and audio into one file which play back on all my devices. Recommended!