Does nothing, unless you are willing to run Youtube’s nonfree software in your browser.

Müll funktioniert nicht !!!

you need to pay for "pro version" to download 1080p.

I used to love this addon because it was the most reliable but now I can't get it to f***ing work at all so without any bias here DON'T EVEN bother either its because firefox is a $*@#% and their reckless excessive updates that can screw with current addons that may not be supportive so yeah THIS one no longer works on my machine and statistics show it may not for probably a marginalize number of users.

cripple ware free with conditions

needs payment to use

Pro version is required

Devs tell users that "Converting these streams to downloadable formats for you needs powerful server infrastructure, therefore 1080p/mp3 downloading has been limited to PRO users".
That's absolutely not true. It's done instantly by any free video encoder. So don't lie to you users.

They charge money for HD also i only tried this because my other downloader kept failing but this wasn't able to do the job either. So, i might as well stick with the broken one that doesn't beg for money.

Garbage. Its not downloading MP3 or HD unless you pay for it.

fonctionne pas. faut payer.....

Its useless.

it dosent work anymore

Doesn't do as advertised. Doesn't work with Youtube's new bullshit. The only way this works is if you have your own video editing software and download the video and mp3 separately and then manually combine and render them.

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.