This simply does not work. When you try to download something from Youtube, the extension give you a longwinded excuse why it doesn't work. Don't bother.

Total garbage. When Firefox does an upgrade this doesn't work anymore until you 'buy' again. Support has become useless (even after buying twice to be a nice person). Save your money.

doesnt work

Garbage.
Absolute garbage.
I donated once and it worked fine for a while and then stopped working.
So I donated again and it worked fine for a while and then once again quit working.
This was both times with the receipt page open in another tab.
Don't waste your time and money donating for the "pro" version because it's garbage.

And once again it's decided it doesn't want to work.
Just plain junk.

If you want to download anyiting in 720 or 1080p you have to pay at lest 10$. It should have be written in the major description, I don't like this kind of clickbait.

Does not work no download button is displayed at all.

I have downloaded and uninstalled this add on 3 times and cannot get to 1st base with it simply because I can't find it. It says it is there when I check the add on page. But that is as far as it goes. Half a Star.

Originally gave this 5 stars, dropped to one because I paid for pro in 2019, now I have to pay again because he changed the auth system??? Sorry, no.

New fix just posted 6/19/19. Will update my review once I have a chance to test it.

Now: Stopped working ... response to my question did not solve the problem.

Earlier: The add-on does everything it claims to do. It's simple to use and works flawlessly - I heartily recommend it and I too have donated more than once to support the developer.

I have no claim to the free version. I have a claim only to the video that is converted to Full HD. This video does not go smoothly, but it freezes periodically for a fraction of seconds. Probably on the server is not a quality converter that cuts frames. The video is far from good and impossible to watch calmly. My computer is an Intel Core i5. The problem is not with me, but on the server in video converter. I downloaded about 20 videos in full HD format and spat on quality. I no longer use paid version of the program. This is absolutely not a quality thing that should not be sold for money.

I am not satisfied with the quality and I asked to refund my money, but the creator of the program said that the reviews on the program have 100% satisfaction rate and that he will not refund me the money.

Says it can download the 1080 videos but the minute you try it complains about some server load and wants you to upgrade to pro. It's a scam.

Upon clicking "add to Firefox" a notification informs me of the following:
Easy Youtube Video Downloader Express requires your permission to:
-- Access your data for all websites
-- Download files and read and modify the browser’s download history

Are you out of your mind? You'd have to be nuts to allow this to attach itself to your browser.

And this is a "Featured Extension" on Mozilla? Wow just wow just wowee-wow.

how am i supposed to know if it's worth making a donation if i can't even have a few trial runs? useless. it's like me paying for a car that I can't even test drive

Here's what I got when I tried saving a video to MP3:
"Youtube switched to separate audio/video streaming technology for higher quality formats and no longer provides direct 720p (Since 24 September 2018)/1080p/mp3 streams. Converting these streams to downloadable formats for you needs powerful server infrastructure, therefore 1080p/mp3 downloading has been limited to PRO users."