I've used quite a few similar pieces of software and this is the best and most reliable one I've come across.

This add-on is simply the best I've known and experienced, a thousand thanks for the great job !!!

Works great.

Super outil, bravo !

This is the very best video downloader. Easy install, easy to use, quick and perfect record.
Thank you.

Love the add-on! It does exactly what it says. The only ways it could be even better is if it supported FLAC downloads, and if it supported other websites such as Vimeo. Thank you for all your hard work, Dishita!

Excellent YouTube downloader!

This extension has really helped me to learn so much by downloading relevant videos for my study library for easy offline access

EXCELLENT! FAST! THE BEST! I have been using this downloader for years! If I have an issue I contact support and Dishita works on it right away! Always a fast positive response! There are many others out there but nothing come close to this! Completely satisfied! So satisfied I make donations when I can. This knowledge and skill deserves support!

No longer works, the download button is gone.

It becomes a payment requirement trash

It used to work great, but not now. Now squeezing users for money.
720p is now "HD" and requires paid Pro feature. No mp3 downloads.
SAD!

It works, but practically only for 720p video. Does the job if you really want a downloader browser extension, but it's really limiting otherwise. I'm not bothered that mp3 is limited to a paid feature, it's easy enough to convert video files to audio only. What does bother me is the lack of 1080p or higher downloads.
Their excuse about needing "powerful server infrastructure" for 1080p+ downloads is a weird one, considering this is all done locally. You could convert to mp3 locally as well, but that's whatever.

All in all, it works. But you're better off just using software that lets you download as you please.