Earlier quoted context omitted.
No need to be revisionist. Chrome brought amazing work to the table. The multiprocess, sandboxed system was incredible - it's not to say that Chrome was the first (IE did it earlier) but it was certainly way ahead of Firefox for a long time. Chrome is the reason we have Seccomp V2 on Linux. Chrome made "software is always up to date" the standard. Before Chrome, Blackhole and PoisonIvy absolutely ruined people's comp…
Chrome's multiprocess sandboxing wasn't unambiguously good. It carried a steep cost in overhead. Back when Chrome was new, you could run Firefox with a decent selection of add-ons to get security benefits of similar magnitude through different mechanisms. The NoScript extension was at the forefront, providing a lot of functionality way beyond just blocking JavaScript per domain. And Firefox with extensions always had…
You can make your arguments about noscript if you'd like (I have a great respect for the project) but I think it was essentially irrelevant to user security at the time, real users were really harmed by malware that exploited Firefox, Java, and Flash, and Chrome killed every one of those attack paths in virtually no time at all.
Computers were far more dangerous before Chrome. You watch old TV shows and it's a joke that people would visit a site and get hacked - that's unrecognizable today, it simply doesn't happen. It used to, Chrome changed that.