I used FF on my phone for a while, back when my old MacBook was stuck on a version of macOS that didn’t offer iCloud syncing. Firefox on both devices worked perfectly, but I always slightly preferred to use Safari wherever possible.
These days I keep FF on my Mac for if ever I need a second browser, and it’s the first thing I install if I ever need to setup a Windows VM.
I used FF on my phone for a while, back when my old MacBook was stuck on a version of macOS that didn’t offer iCloud syncing. Firefox on both devices worked perfectly, but I always slightly preferred to use Safari wherever possible.
These days I keep FF on my Mac for if ever I need a second browser, and it’s the first thing I install if I ever need to setup a Windows VM.