For a long time it was absolutely awful on Android as well. Not sure about Android, but at least on macOS Firefox has about identical performance as of this yea

For a long time it was absolutely awful on Android as well. Not sure about Android, but at least on macOS Firefox has about identical performance as of this year now. They did a lot of work, some macOS specific, in recent times. That said your average person isn't trying out every browser multiple times per year to see how fast it is today.