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."

Not working unless upgrade to pro and no trial available.

No trial period for the pro version. Minimum donation for pro is $10. Not going to pay $10 without knowing it works first, since so many other extensions like this one just plain don't work.

No thanks. Not getting my money without a trial.

垃圾

IT'S A SCAM
I've payed a PRO user the last year and didn't works right now and they told me that i should pay again! because they have a new license activation system. I'm very angry

A reminder, this add-on isn't free, a lot of its feature, for example: hq video and mp3 is disabled if you're not donating. So consider that before installing.

wouldn't work, no button to download

It's not free at all ;) It working only pro (paid) users.