[mediocrejoker]

By fling, do you mean the two-finger horizontal scroll to move back and forward through history? If so, I miss it too.

[the_pwner224]

I've enabled this on my Linux laptops (settings are the same regardless of OS) to get that functionality in FF:

https://wiki.archlinux.org/index.php/Touchpad_Synaptics#Fire...

[jonnytran]

That's in macOS System Preferences. I use it all the time. Go to Trackpad / More Gestures and check "Swipe between pages". You can also control how many fingers you want to use. I set it to three fingers so that it doesn't conflict with horizontal scrolling.

[Improvotter]

I mean the bouncing when you overscroll vertically.