As an IE fan I was annoyed that they stole porn mode (IE announcd InPrivate before chrome existed). I still know quite a few people who think Chrome invented incognito and that IE ripped it off.

Now that I look it up, apparently the idea started with Safari, but it didn't get much press.

I think the biggest innovation in chrome was how rapidly they shipped. Chrome copy-catted on hardware accelerated rendering and porn mode, but shipped first in both cases.

Every browser borrows from other browsers. But really, browsers are mostly technology, and Chrome was a few notches above all the other browsers in terms of performance, security and crash-recovery. The browser industry owes a lot to Chrome for really pushing the boundaries back then.

The second page of the comic acknowledges they took plenty of ideas from other browsers.