I am using Linux mint 20.04 with firefox 88.0.1 and took 45 min. going through about five different download add-ons and apt installs to get a youtube downloader which works with youtube.
This Easy Youtube Video Downloader Express is the only one which simply works.

Great simple add on for a user. But most probably a lot of work for the developer/maintainer.

Awesome add-on. Really easy to use and good results. Especially thankful for the sole dev responding quickly to YouTube code changes. This keeps the extension working though YouTube actively tries to break it. Thanks and keep up the good work!

This is a very efficient YouTube down loader, I would not be without it. YouTube keeps changing codes on their end to defeat down loaders such as this one. The creator of this down loader is always working to be one step ahead of the YouTube code changes. Please don't rate it badly if YouTube gets ahead of him, he will 'fix it'
Thanks RW AU.

Easy to use and it downloads great!

ive used this app for some time now. appreciate all the hard work the developer puts in to this.

very good

Convenient and simple YouTube downloads with a button that stands out against light or dark themes. When YouTube broke this add-on by changing code in March 2021, the fix came not too much later from the Easy Youtube Video Downloader Express developer. Another fix arrived more recently although I'm not sure my Firefox installation was affected this time around. I use this add-on more than any other except for Firefox themes for appearance.

This is a very simple and effective extension. It works on a lot of sites and downloads pretty fast in most cases.

Extremely satisfied

Works like a harm.

I can download most movies with this extension. I've donated several times and will probably do it again in the future. Thank you!

This is by far the best and most reliable downloader I have ever used.

Easy is right the word for easy YouTube Video downloader. User friendly Add-Ons. It's the best that i have used. Keep Up the good work Guys. Cheers!

The whole vanishing download button scared me a bit, but after inquiring to Dishita about it, it got fixed immediately. Google is effin up big time 3rd party add ons which imo are much better than theirs. This is definitely the best extension to use for youtube! I don't mind donating again and again to keep this awesome service ongoing.

If you are no getting the most of the extension, rest assure that the developers are working hard to provide all desired features.
I like this extension A LOT, it helps me with various features that YT lacks.