Very helpful and works on most of the websites. I only give 4 stars because when you download more than 1 video (what I normaly do) and 1 download fails there is only displayed that a download has failed but not which one. So I habr to check the downloaded files which one has smaller size as expected or in worst case I have to open each file to test if the video is complete. If the name of the failed video would be displayed the addon would be perfect