Very useful add-on with some really cool features.

Perfect! Does the job really well.

5 stars its good, nice idea..

Beste YouTube Add-on die ich kenne.
Danke!

An excellent Extension! Great features, easy to use. Does what it says. Who could ask for more? - Article_86

Nice! Like older firefox extension to do site customizations.
I think strange separate tab for configuration, maybe more easily on the page(Over)
And complex to do configuration... But cool.
And that problem:

17:10:14.762 TypeError: localStorage is null D5S6p27u5t8:11:214
https://www.youtube.com/embed/D5S6p27u5t8:11
https://www.youtube.com/embed/D5S6p27u5t8:11
moz-extension://e78eb895-53d3-4535-84ac-eaeb403d6b63/embeds.js:32
apply self-hosted:4419
applySafeWithoutClone resource://gre/modules/ExtensionCommon.jsm:539
applySafe resource://gre/modules/ExtensionCommon.jsm:526
applySafe self-hosted:1007
wrapPromise resource://gre/modules/ExtensionCommon.jsm:740

Great tool for handling some of the more annoying crap that YouTube bugs us with.

Really cool Add-on! Youtube has way to many UX restrictions, and this add-on is a must if you like to spend time on Youtube :)

Cool way to enjoy YouTube!

Works great!

I like the feature that pins the video when we scroll down and the video quality select mode.

Thank you!

Was pleasantly surprised that this works so smoothly
(whithout slowing down anything else like other add ons...)
Thank you Maxime R.F.

Great