To use these add-ons, you'll need to download Firefox.

Qqen
Tignit n uzegrir

Iceggiren i Enhancer for YouTube™

Enhancer for YouTube™ sɣur Maxime RF

4,7 n yitran ɣef 5
5
9 995
4
1 115
3
332
2
171
1
406
Icegger-it dave
sɣur dave, לפני 7 שנים
It doesn't expand thumbnails like the one in Chrome, but it will do.
I would prefer the menu below the video box instead on IN the video box.