> Then you end up with shit performance or broken sites in Firefox

I work for a large corporation. A few years ago, they removed FF as a browser people could use at the company and removed it from the internal app store. Then, if you had a version, they forcibly uninstalled it.

As someone who's a developer, I needed access to be able to test on. Never forget going into the tech support office and saying I need this installed to be able to test my code. Support guy says, "Yeah sure mate, let's get that reinstalled for you." Tech guy downloaded it, started the install, and suddenly got a pop-up warning him it was against company policy to have this installed on your machine. It then auto-removed the app files he just downloaded. We sat there dumbfounded. "I guess we're going to have to escalate this mate." he said with a confused look on his face.

Almost four months later, support finally relented, but put in so many barriers to get installed that only a handful of devs have it on their machines now. I get emails almost daily, "Mate, I need you to test this in FF." or "Is this breaking in FF?"

I guess the reason given was FF lags in updating their certs, making a prime target for malware attacks so they just killed it so they wouldn't have to deal with it.

Just kind of strange that my entire career I was constantly told I needed to test this on any and all browsers available because they all have their nuances and you never know what might break something. To moving to a time where I'm testing on a single browser and calling it good? Man, times they are a changing.

> Just kind of strange that my entire career I was constantly told I needed to test this on any and all browsers available because they all have their nuances and you never know what might break something. To moving to a time where I'm testing on a single browser and calling it good? Man, times they are a changing.

Interoperability is hard. Plus there are network effects — and so that's why lots of ecosystems tend to see adoption of a single implementation as the de-facto standard. Remember when we had to be aware of character encodings that are not UTF-8?