Excellent work, I was trying to do this all myself with a mutationObserver and a userscript and for the life of me I couldn't get it to fire properly. So you're a life-saver ... I've even done a bit of userContent.css manipulation on the side, too!

By the way, they've slipped a new one in there called 'finds this funny' ... grr, etc. XD

Quite possibly the greatest extension made for anything in the history of the world!

This will save me months worth of time!