just up and quit working. I have scrubbed my system clean, uninstalled and reinstalled the app.
Went form a 4.5 to a 1 very quickly.

Not working

good resolution

your button shows "old" video on youtube, but no playing now.

Great add-on!

The HQ OPUS conversion no longer works, literally the only reason I used this add-on, VERY DISAPPOINTED!!! PLEASE FIX

Redirect

Jednoduche, prehledne, neotevira to zadne dalsi zbytecne stranky, proste si pustite video na YT a vpravo nahore v liste Firefoxu kliknete na "ulozit" a ulozi se Vam to do sve stahovaci slozky... Super- parada!!!

EDIT 15.7.2018:
Tak jsem tp prechvalil. PRISERNA (!!!) kvalita nahravek kdyz dam MP3 320kbps (jine jsem ani radeji nezkousel). Ubiram hvezdy co to jde...a mazu...!

hands down the worst quality converter i have ever used. There is a very annoying distortion in the downloaded files. Now i have to go and redownload them through another, better converter. Fantastic idea but shit quality even after using the "high quality" option.

Installs Adware! Beware. Not worth the inconvenience.

It doesn't work anymore 05/01/2018

Doesn't show up. Stopped showing up about a week ago. I removed it and reinstalled it and it still doesn't show up on youtube music videos to convert them to mp3's. Too bad because it was the best one i had found. Hope they can fix this for me FAST!!!

No support for 1080p.

Doesn't do anything

Seems to be broken..... Whatever.

Doe snot work looks like a redirect click bait scam.

When its ON:
-sites not opening(connetion lost)
-streams buffering so much
-sites hanging on
-slow connections
-scripts not working properly

When its OFF:
-Everythings ok

This program consistently doesn't download the entire album. it downloads a couple cuts and the download says it is complete but it is never complete .

This used to be great. Now I only get a bunch of annoying advertisements.
Apparently this has been going on for 7 days and no word from the developer, not a good sign.