Only thing it did was open another tab with the video I wanted to download, not actually download it?

Doesn't do anything at all. Crap.

не работает

No aparece el boton

Demands money for normal quality downloads

Malware.

Doesn't do anything.

Probably a data collection scam.

Very dissapointed, so I tried udl helper and it's really useful

not work

yalan çalışmıyor bile

Una Mierda, ni aparece el boton, que ganas de hacer perder el tiempo a la gente...

Je to falešně rozšíření, které po nejaké době vloží nebezpečný kód ze stránek autora.
Skoro všechny kladné recenze jsou vytvořeny generátorem uživatelských účtů. Nahlášeno !!!

GARBAGE IT DOES ABSOLUTELY NOTHING.
THERE ARE NO LINKS TO CLICK ON AND WHEN YOU CLICK ON THE ICON ON THE FIREFOX OVERFLOW MENU IT DOESN'T LAUNCH ANYTHING.

complicated i think this addon is very simple and very good just click download

https://addons.mozilla.org/en-US/firefox/addon/simpl-youtube-video-downloader/