Hey man,
First off I'd like to say I really am happy and very grateful you have taken the time out to write something like this, and release it to the public. You're an inspiration to what I would like to eventually be able to do once I am through with some school (Just started some basic coding classes, wish me luck!).
I do have one request, and it's small.
I often times like to keep saver2 Open, but on pause. Now, I had no Idea it was recording every Youtube I watched but, it was. Now there is nothing WRONG with that, but it would be neat to have an option to pause the download and save of Youtube links for a time, until I wish to have it turned back on. (Other than going through the options messing with the plugin.)
Just my 2 cents. Expect my donation soon :)