Unfortunately, on my Moto G5 Plus (which is not an high-end device), I've found that Firefox on Android is slower than Chrome (specifically the Bromite fork). I

Unfortunately, on my Moto G5 Plus (which is not an high-end device), I've found that Firefox on Android is slower than Chrome (specifically the Bromite fork). I think that Firefox may not be a good solution for low-spec or older phones running older Android versions.