It's not really weird at all, that's actually what happened with IE. It wasn't that IE was lacking but people used it anyway, IE was doing really cool stuff but

It's not really weird at all, that's actually what happened with IE. It wasn't that IE was lacking but people used it anyway, IE was doing really cool stuff but in it's own way. AJAX is one example, IE introduced XMLHttpRequest back then and it took 15 years to become a standart. So people built their cool websites around IE features that were not actually standards and once Microsoft screwed up IE people found out that you can't switch to alternative browsers because websites were built to support IE. As the IE experience degraded(has become famous for crashing and taking the OS with it) and there was a room for improvement, Netscape become Mozilla and they introduced actually good browser that later will become Firefox but because most people used UI, web developers had to accommodate IE by writing IE specific code everywhere. That's where the hate for IE comes from, it wasn't fanboys hating IE, it was developers hating IE because they had to write extra code all the time. Firefox may support some Chrome features but how sure you are that Google will keep making a good browser? For many, Chrome is already a degraded experience for what it was and it is actually very nasty in favouring Google properties and tracking that can be a disaster if switching away from Chrome becomes as hard as it was with IE.