Firefox is only a secondary browser to me these days. I've grown tired of it's performance for years because the Mozilla group would rather keep stuffing unnecessary features into the browser and bring about it's own ecosystem that it may be collecting data from itself that nobody may know about than fixing that god damn memory leak.

I never used chrome

Chrome is everywhere and everything is built on it or optimized for it.

I use Firefox, but I do run into a lot of problems with sites not working correctly. Makes me want to switch to Brave occasionally.

I wish FF would natively support text replacement in macOS. This shouldn’t need an extension to accomplish a pretty basic thing.

https://connect.mozilla.org/t5/ideas/support-macos-text-replacement/idi-p/15219

If you need a Chrome-like or Chromium based browser you can always try the various other versions of Chrome out there. Just about every browser that isn't FF is based on Chromium now.