Doesn't appear to do anything Rated 1 out of 5 stars

Installed this and restarted. There was no download button or anything to make this function. It is installed but, no interface to use it at all. Thought it might be a button lost in the customize section but, that does not appear to be the case either.

This review is for a previous version of the add-on (1.3.2.1-signed). 

Is the download button below the player not visible? The extension integrates with YouTube's interface, as you can see in the screenshots. I'll try to make this more clear in the description. Just go to any YouTube video from YouTube.com and you'll notice the download button below the player. Now you can delete this review :)