I had to get rid of Chrome because it wouldn't work for shit. It was fast, but it wouldn't even let me go to fucking google.com or mpgh.net, it would say that it doesn't exist. Pissed me off so I had to stick with Firefox with freezes up every 10-15 minutes which lasts for about...2-5 minutes. The first chance I get, I'm getting rid of McAfee so this computer will finally be problem free. (That piece of shit anti virus runs over 10 different programs at once, causing extreme lag, and none of the programs are even for the computer, they're just ad shit)
Hopefully once I get rid of it this computer will be a lot faster and then Vista will be next on my list to get rid of.
Chrome may be fast, but it is buggy as shit and has google crapware running in the BG by itself.
FF takes ages to start up, however I love saving my sessions. Oh yeah and it lags.
IE starts fast and is a clean slate, however if you leave it running for too long it eats up ram and apparently has some sort of memory leak. Besides that you can start up several independent and relatively quick instances.