I am not giving this three stars because I don't like it. I actually LOVE this add-on.

I'm giving it three stars because my download button disappeared, and even though I downloaded the newest version, the button is still missing. I haven't been able to download anything for a week because none of the other youtube downloaders are as easy to use and I can't figure them out. I really miss this add-on. I'm hoping the creator sees this and can do something about the missing button, because there's no way to get in touch directly.