I switched for the same reasons but kept FF around mainly for Firebug. After using and getting use to Chrome Dev Tools, it is actually no different and in some cases better. I don't do as much front-end dev as I used to though... But I do remember reading that the FF team worked with developers of popular plugins like Firebug to help make those plugins run better, use less memory and cause less memory leaks. You may find those plugins a lot better now.