Have been using this app for occasional higher quality downloads for years. Recently had some difficulty enabling the PRO features, but the developer quickly responded to help me solve the problem.

the pro version works very well

Easy to use, great tool.

I love this plug-in extension add-on. Though it has not work for me as of late. Probably due to Youtube updates against Firefox's own updates. Hopefully the creator of this app can resolve this!!

A great add-on. Using it often. Quite happy with it. Recently experiencing very low transfer speeds but it is free so I cannot complain.

The best downloader for Firefox, and not by a little. The operating interface is still a bit obtuse for the uninitiated; the only reason no 5th star from me.