Will you be switching to Chrome?
lux: No real choice but Firefox as my main browser since my main web activity is development. Chrome, Safari, IE all can't compete with Firebug, YSlow, etc for web development, so for expediency I have to develop in Firefox first and test in the others afterwards. I think that's a big part of what makes Firefox such a compelling browser, it's developer heaven compared to the others.It looks like Opera is starting to recognize this too, which should help increase support for their browser eventually too.