Hi, macOS user here. I know Firefox is great, and I'd love to use it (again), but Mozilla's decision to remove all user-facing, OS-level scripting capabilities from it (i.e., AppleScript) made me drop it a few years ago. Getting anything out of FF on macOS, locally, is a major pain in the ass, actually. Try to grab the current URL from the active tab…

Add to that the non-macOS text handling, macOS-unlike font rendering, its insistence to not use the system-wide spell checker provided by the OS etc. It feels a bit rude at times.

I think it's a super-solid browser that unfortunately doesn't give a shit about the platform it's running on. Irritatingly, it's fine with being a black box, so much more than the Chromiums are (for all their various faults).