Does Not Work Rated 1 out of 5 stars
I don't know why this is so highly rated. It adds the appropriate download links to the Youtube page, but none of them work.
Try 1-Click Youtube Downloader instead
It is so highly rated because it used to work. However, it seems that YouTube has changed the workings of its page again, and because of that this plugin is no longer working.I strongly suggest you to try 1-Click YouTube Video Downloader instead: