FF just got web socket inspectors so I really don't know what chrome dev tools has now. Everything about ff dev tools is better. Especially looking at css layouts.
Edit: This post prompted me to Google for it: https://developer.mozilla.org/en-US/docs/Tools/Debugger/How_...
Move along, nothing to see.. :-\
Looking good, will give it another go.
Firefox is generally still a little buggier and less performance in my experience, but not so much that I want to switch back. Hopefully they can stay relevant.
But Chromes debugger and performance analysis still is a lot more capable.