Scroll one page instead of jumping to the current pointer position

I changed these settings in about:config of firefox (ubuntu) to get the scrolling work like other browsers for e.g. Chrome (windows) or chromium (Ubuntu)

widget.gtk.overlay-scrollbars.enabled false widget.non-native-theme.gtk.scrollbar.thumb-size 1widget.non-native-theme.scrollbar.size.override 15general.smoothScroll truegeneral.smoothScroll.stopDecelerationWeighting 0.8mousewheel.min_line_scroll_amount 60layout.frame_rate.precise truemousewheel.acceleration.start 1mousewheel.min_line_scroll_amount 60____general.smoothScroll.mouseWheel.durationMaxMS: 250general.smoothScroll.currentVelocityWeighting: 0mousewheel.min_line_scroll_amount: 25

But when I click at the bottom of the screen, it scrolls to the end instead of page down.