I'm OCD, and here are the two browsers I have installed:
They seem to look exactly like Chrome and Firefox. And in fact, they are. The only difference is that Iron is faster and doesn't have all the privacy snooping that Chrome has and Pale Moon has more features on top of being speedier and slimmer than Firefox(such as removing the status bar).
The little glitch I notice in CCleaner that bugs me is that these two browsers are recognized as Chrome and Firefox. CCleaner cleans them both just fine since under the hood everything's virtually the same, but I think that something which is better and faster than a competitor shouldn't be made a synonymous product.
Edit: By the way, why is it "Firefox/Mozilla" but not "Chrome/Google"? Or do "Mozilla Firefox" and "Google Chrome".