Works great, especially with my pitch-black theme! Though they did add this feature already, this makes it way simpler!

This is a neat extension, I use it quite often when I have a video playing in a pop-out window and don't want to have the originating page taking up tab space in my browser - this also keeps me from accidentally killing a video feed.

It hides individual tabs like I wanted. A+

Hides tabs to unclutter the tab bar.

Easy to hide, easy to restore.

Doesn't have a keyboard shortcut, but it still gets 5 stars from me. (this was a hidden feature request, btw)

Firefox 59 introduced preliminary tab hiding: https://bugzilla.mozilla.org/show_bug.cgi?id=1423725

I don't know if you wrote it?