FIX THIS PROBLEM: Rated 5 out of 5 stars
You get my 5 stars because this is truly an add-on that we all want. But there is a serious problem that I have found: if you download a bunch of mp4s one after another, sometimes, this downloader will download the same file and name it differently. For example if I have two youtube videos MyVid1 and MyVid2 and I download them both within 5 minutes of each other, I will have two files MyVid1.mp4 and MyVid2.mp4 but they will both play MyVid1! This is unacceptable and has cost me quite a lot of work going back and re-downloading. Other than that, great add-on. 5 stars nonetheless.This review is for a previous version of the add-on (7.17.1-signed).
That was a problem in earlier version of the addon which has now been fixed, Pls. report this at http://www.yourvideofile.org/support.html with examples on how to repeat this error.