This add-on works only for a short time and even then only at the 360 resolution. Then it stops working, it says the size of the 360 file is zero. The downloads history just says it failed. If course if you try any other resolution it gives some flannel that YT changed something and so they need you to pay for the PRO version. I have seen this tactic on some VPN add-ons.

So it works fine for a short period or a few downloads at 360, then it stops and your only option is to pay them money. This is the message if you choose any other resolution or format

"Youtube switched to separate audio/video streaming technology for higher quality formats and no longer provides direct 720p (Since 24 September 2018)/1080p/mp3 streams. Converting these streams to downloadable formats for you needs powerful server infrastructure, therefore 1080p/mp3 downloading has been limited to PRO users."

doesn't work at all.

Was the best - Now it's dead. Youtube AI is seeing red. Use to be fixed within a week, month gone but still deader than dead.

Does not work

foi bom, agora é péssimo

Расширение окончательно скатилось, уже даже в 360p не может ничего скачать. В общем мусор, который следует удалить из рекомендуемых расширений.

Já foi ótima, baixava vídeo com qualidade em 720p. Agora, até o 360p que virtualmente é gratuito, apresenta erro e não faz download. Foi boa enquanto durou. Tchau e até nunca mais.

Download it. Try to use it. Get a message that it won't do anything unless you play for pro. Scam.

It used to work well, but I have been trying to use it to download videos, but it doesn't work anymore. I have removed and and re-added it, restarted my browser and everything. I still get the "failed download" error.

No Funciona. Algo han cambiado

At no point did it even try to download my request; just a cryptic error message. I get the impression it wants me to buy the Pro version first. Waste of time.

Dosnt work!

Od 2019 roku nie działa. Taki komunikat wyswietla.

It used to be very good, but now it's like a rip-off! Sorry, not like that!

It doesn't work. Don't waste your time.

used to love it but it completely stopped working.

The paid version doesn't work anymore. The author was $30 every year. I now use completely free Youtube downloader (UDL Helper).