Keep chrome installed and fall back iff forced to. That way the majority of usage statistics show up as other browsers so when developers are making guesses at which browser to support, those statistics will push them away from chrome.

Additionally: you would be surprised how infrequently you have to switch to chrome

Can't remember the last time I actually had to open a website on chrome for compatibility reasons. Is that still a thing?

I only have to switch to chrome for e-transfers. Everything else seems to work

The F1TV site didn't work on Firefox earlier this year but send to be fixed now, other than that I haven't had any issues.

Btw, the 'website requires chrome browser' problem is often solved if you just make Firefox user agent say it is Chrome.

The problem is this needs to be a standard Firefox feature.

There's one site I have to switch to Firefox for. And it's a big one that handles a lot of money, so that's kind of surprising. Can't log into their site in chrome, no matter how hard I try. Nor edge.

For me “switching” is to start using something else rather than Firefox, so switching from Chrome is viable.

Most sites let you ignore that, but just keep like Ungoogled Chromium around as a backup

By that logic attempting to change anything at all is not viable; e pur si muove.

Find who is responsible for such sites and send them strongly-worded emails. If it's a commerce site, tell them they just lost a potential customer. In my experience it's usually the trendchasing web developers who have drunk the Goog-Aid and are trying to convince the others in the organisation to use "modern" (read: controlled by Google) features and waste time implementing these changes --- instead of the "deprecated" feature that's been there for decades and will work in just about any browser, and the management is usually more driven by $$$ so anything that affects the bottom line is going to get their attention. I've even offered to "fix" their site for free to make it more accessible.

This is common on internal company websites. Devs only support chrome officially.

"This site requires Internet Explorer 6 to work"