Also, the pageup and pagedown keys don't move the page. Also, the arrow keys don't move the page. Also, I can't seem to scroll by clicking on the scrollbar thum

Also, the pageup and pagedown keys don't move the page. Also, the arrow keys don't move the page. Also, I can't seem to scroll by clicking on the scrollbar thumb and dragging it. Very frustrating indeed on FF on a desktop.