Lifehacker has an article on how you make your Firefox browser look just like Google Chrome using a few extensions. While the article really speaks to the adaptability of Firefox—the results are a close match—there’s one feature about Chrome they failed (or forgot) to replicate.
Chrome has sacrificed the browsers titlebar in favor of pushing the tabs all the way to the top of the screen. Why is this so important? Well, in Windows that means your tabs will touch the edge of the screen, real-estate that in a usability context is highly valuable. Think about it, if you closed your eyes and moved your mouse based solely on memory, which parts of your screen would be easiest to find? The edges of course, because they stop your mouse from getting farther. As such, I’d argue the most important feature of Chrome is that the tabs are so easy to hit. That’s a feature worthy of adoption.