Oh no, not...what was it again?
Don't make fun of a (formerly) good product just because you're (probably) too young to remember it. Mozilla (yes, Mozilla, not Firefox) back in the day ran on OS X but always looked a bit out-of-place. Camino took the Gecko rendering engine from Mozilla and wrote a native Aqua interface around it. It was much nicer to use.
Oh, and then Firefox (then called Phoenix) came along later and did the something similar for Windows and Linux, albeit with the standard XUL/Gecko-based UI. They actually didn't make a Mac version at first because they didn't want to put effort into filling an already-filled niche.
Camino (formerly Chimera itself) has since fallen behind, and the look and feel of Firefox on OS X (which, of course, they eventually decided to make--once Mozilla developers shifted primary focus to Firefox rather than the suite as their future) has dramatically improved. While Firefox still doesn't integrate with OS X features like Keychain, it's no longer as bad as it once was. Meanwhile, while it was never my primary browser, I've had a hard time justifying keeping Camino around as even a backup browser.
Still, its influence is not to be understated. RIP.