> they don't because Chrome is better.

That was because of marketing not because Chrome was better.

The Google.com homepage telling you to use Chrome is one of the best marketing campaign in the world.

No doubt that Google using their mainpage as a megaphone for the first time in the company's history made a difference.

... but that only got people in the door. What kept them in the door was this image: https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg...

... or, rather, the word-changing technology underpinning that image: the ability to sandbox individual page rendering instances into subprocesses so that a failure on one page didn't crash the entire browser. I think people sometimes forget how fundamentally unstable browsers were in 2008, and how easy it was to trip over one bad page that would bring down your bank tab, your email tab, your document tab, the three tabs of source code you had open, the seven tabs of unread blogposts... Hugely disruptive. Just didn't happen in Chrome.

Firefox popularized tabs, Chrome let us have a hundred of them open.