This is the most effective video downloader I've tried. I would give it 5 stars, but the elimination of the companion program is a bad thing. The problem is the Firefox disallowed extensions to save files wherever uses wished some years ago, so a program by the author was necessary to complete a save in the regular way. Without this, one has to go to a pre-chosen location and move the file to ones preferred location for it. Yes, one can use the extension to open the Downloads folder and move the file, but that's more work than I want to do. Still, I understand and this is more than I've gotten for free in a while, so kudos to the developer.