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.

complete bs!

no more hd video support so no need of this add on

Sent them $30.00 and repeatedly followed the activation instructions from within the broweser and never has it worked nor was my email answered. Will not activate in Firefox for Android! A waste of time. I can do everything this does not do with other downloaders that I haven't paid for.