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I've used chrome and firefox at the same time and i've noticed that they are somewhat alike to each other. Do any of you agree?

yes and i believe it's because it is a good look, the interface
But what matters is what's behind it.
I use to say that chrome is way better in render times, but possibly with worse quality outcome
Firefox renders slower, but visually better
if you're on slow comp - use chrome, fast - use FF