it's the mac of web browsing
You have to pay ridiculous amounts of money for gui changes?
Ontopic:
I prefer firefox but don't dislike chrome.
Firefox didn't score perfect on Acid3 tests.
You do understand that Acid3 test is from 2008 and is slightly outdated in some fields.
Firefox only failed because of Acid3 has odd font standards and it was off from Acid3's rendertime by 38ms which you won't really notice while browsing. In order to score 100/100 your browser does not even have to render it correctly this test is not perfect and needs a revision for today's standards.
Oh and ps the main developer of the Acid3 test was Ian Hickson a google employee.