I’ve got some Alienware something or another and it has 3 buttons on the side and 1 below the scroll wheel for changing DPI (I think) and I don’t use any of them. The DPI thing changes the mouse speed, but got jammed and started doing it randomly which pissed me off so I turned it off. 1 of the side buttons goes forward in chrome and the other goes back, but I have no clue what the other does