It works, but only if you pay for pro. Recently my pro activation stopped working after I re-installed windows 10, so i contacted them for support. Apparently, the "one-time" pro upgrade donation is not exactly "one time", they ask you to "donate" again before they will help you.

So, OK addon I guess, but strange to be hit up for $ (again) like that.

A really great that all FireFox users should have. Faster easier that all the rest. Thumbs Up.

Extremely handy add-on, and the developer keeps up to date with the endless youtube changes that break most extensions like this.

It just doesnt work, It cannot download mp3 files.

Good!

Just does it!
Works each time reliably. Very easy to use. The offered formats are very convenient.
When I had a problem (due to my own mistake) the customer support responded within one hour! Impressive...

Highly recommended: This video downloader is very easy to use, faster and less complicated to use than others. Click on the "Download As" button that appears below the YouTube video, select the file type you want to download (mp3, mp4, etc) and go! Also, if any bugs or server issues occur with the program, the developer responds promptly with a solution.

(update Aug-2020)
As technology continues to change - it's great to have someone stand behind their work. Appreciate the time/effort/ and results...

a) it works and b) great support - spend the time, spend a few $ and support this app. Hard to find good people who support such a great product.

cool

помогла

Thanks it works great.

This product is very easy to use and the support is second-to-none. I'm very impressed at the way I can access 1080p videos from YouTube.

Easy YouTube Video Downloader Express USED to do what it says it's supposed to do...

BUT

They started demanding a Premium membership for just about anything beyond the most basic videos.

I'm not interested in giving them my money, so I REMOVED it.

One of my favorite Firefox Addons. Works reliably and updates are made when necessary. When I needed help, the developer was very prompt in answering my questions. Highly recommended!

Great extension. This is one of those add-ons that you forget how much you use it when you don't have it anymore. And it's one of the many reasons I'm back to Firefox full time. Thank you Dishita for keeping it up to date whenever YouTube inserts their foolery.

Update: 3 years later, the add-on is going strong and it has become pretty much a necessity. I always feel it whenever I don't have access. To top it off, the author is very generous with support as well.

Went Pro, really like ease and simplicity. When I had a problem, probably of my own making, I got a help response within hours of sending an email.