On my laptop firefox haves a function to swipe with 2 fingers left and right. Left is going back to the page before and right is going back to the page before you did go back. I hope people will understand but i will show it how it looks on the normal way. <-(back) ->(forward) but i will like to have the same feature on mobile too because i'm tired of alway clicking on the 3 dots and then the arrow.