Very useful extension, but, unfortunately, stopped working in Yandex.Music. :( Very sad.

Best extension ever. Now I'm able to download YouTube videos with much ease.

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/

excelente

Все работает.Разработчикам респект!!!

All you that give 4 or 5 stars and say its good dont say true. Safefromnet helper doesnt work few weeks. Even if I back to older versions of Firefox. So dont you LIE TO US!!!

Good