Yes, Chrome is load pages quicker. Firefox tends to be a bit laggy. Like stated above Firefox supports a ton of plugins which is good.
I do not use chrome for developing as I do not trust the integrity of Google. I also like to test websites on several different browsers. I use the following
Chrome
Torch
Firefox
IE 6, 7 8, 9
Netscape
Safari
I still do not understand why Microsoft has not developed a better browser. You think they would want to have a better product than Google because Internet Explorer "SUCKS"!!!