Rated 5 out of 5 stars

A great add-on! Have used for some time with zero problems!
Recently has been unable to download from some videos, but this seems to be the doing of a blocker on Youtube's side, NOT an add-on bug. (I could download from a vid one week, the next week same vid & I couldn't)
Still recommend this add-on!

@ledwardz... try Audacity for editing mp3s.

This review is for a previous version of the add-on (2.8.9.1-signed). 

Youtube's changed how some of their downloads work. They have different streams for audio video. There's now a patch on www.glimmersoft.com, and it should be up here before long. :) Thanks!