Most flawless working video downloader that I tried (and I tried all of the recently most popular in Firefox addons). The only problem was with finding and downloading the Native app (go to their homepage - ant.com). It won't appear automaticly as a shortcut (just click your extensions list), so it's maybe too complicated for some people. But it works perfectly.

It's dead.

Doesn't work unless you download something on your computer

garbage. nothing appears on the toolbar.

Like others I've found this add-on no longer works. And I mean AT ALL.

IT NO LONGER WORKS AT ALL, does not appear to try, just says cannot merge streams but does not even do the usual assembly.

It makes me very sad that this extension has been ruined by the developer. It used to be a really nifty extension capable of saving anything. While it can sometimes save SOME videos from YouTube the extension with companion app make it so slow that it is not practical. We are talking HOURS here. I am not surprised that the developer has given up. The least they could do is stick the source of all versions on GitHub so someone else can try and fix it. Thanks for your previous effort.

Video not found.

Doesn't support Linux.

Used to be the best one available but I believe that they have quit developing/supporting it any longer. Now it just doesn't work on most. Really too bad...