It's there for me in Firefox. With a mouse if I spin the wheel then it starts an animated scroll. However, I cannot send any more scroll inputs until that anima

It's there for me in Firefox. With a mouse if I spin the wheel then it starts an animated scroll. However, I cannot send any more scroll inputs until that animated scroll has finished. So with two scroll wheel spins in quick succession, the second one is ignored. This only seems to be the case with two spins in the same direction; reversing the direction while the animation is happening works as expected.