I've been on nightly for as long as I can remember and at this point I'd say I can't find any feature that Chrome has that I really need (as a web dev). I guess

I've been on nightly for as long as I can remember and at this point I'd say I can't find any feature that Chrome has that I really need (as a web dev). I guess once you get used to one toolbox it's hard to switch. I'm also amazed at the speed at which firefox has caught up to chrome in this area. Chrome dev tools have some features that aren't in firefox yet, but firefox has some tools that aren't in chrome. Where are the FF dev tools lacking for you?