This extension modifies the wrong thumbnail element. Jambo only appears for a split second when hovering over videos, before the preview starts.

it's great! Love it lol. But it doesn't seem to work on the homepage? But it works on channels and when searching for videos, and on the "end of video, new video suggestion" screen thing. But not on the homepage itself. Still, it's so funny haha

it's fookin Jambo, mate. what else could you ask for? who dafaq said perfection doesn't exist?

JAMBO

Because it is Jambo.
THANK YOU FOR THAT!

would've been 5 stars, but unfortunately, sometimes schlatt shows up alongside jambo

10/10 made youtube 10000% better

literally perfect.

this is gaming, redefined™

Absolute Cinema

perfection in one extension

this is so silly and funny and i'm glad its on firefox. thank you for funny cats in every thumbnails everywhere

Works like a charm. I love jambo

Mmm jambo

an amazing addon, changed my life just like jschlatt changed millions of lifes back in 1999

Changed my life

That is amazing

If I could have only one extension on Firefox, it would be this.