Others gave some proper responses. Nobody mentioned battery, which is a pretty important aspect imo. Firefox will drain your battery in 3 hours, if you use Safa

Others gave some proper responses. Nobody mentioned battery, which is a pretty important aspect imo. Firefox will drain your battery in 3 hours, if you use Safari you can at least double that amount. Also, I don’t know if this only happens to me but, if I connect my Mac (i9, 16” 2019) in clamshell mode to my 4k monitor it’s going to get super hot with Firefox but it won’t with Safari. If this does not matter to you then Firefox is the best out there. I keep them both and use them accordingly.