It WAS an excellent addon for downloading every video and playing it off-line (especially helpful with slow or unstable Internet connection). Nevertheless, now it doesn't work with Youtube.
I'm not sure about version with functionality broken - I haven't updated it for a while. Anyway, it doesn't work now.

Everything good EXCEPT CANNOT DOWNLOAD HLS files. Using Companion complicated!

long history of being completely useless, recent update seems to be working, kinda, but added a pointless QR code watermark. this is not 2013, tons of alternative now and no reason to paid for same function that i can get for free long ago. and theres no actual improvement or unique feature that makes it worth the price its asking.

i.e. too little too late.

XT do a much better job for free with no watermakr.

muito bom

interesting

One of the best video downloading extension.

so easy and reliable

Love this. Great add-on with Foxfire

Kinky!! Downloads whatever is found on the pages. Download speeds vary but I assume that it's from a variety of online factors.

Ottimo prodotto

If you dont pay 28$ you are gonna get a huge watermark on the downloaded video

Fantastic!!!!

lives up to expectations and then some