Fixing trackpad scrolling speed on Firefox Linux

I bought an Apple Magic Trackpad 2 to place between the two halves of my split keyboard and it's been working almost perfectly on Linux.

The only annoying issue with it out-of-the-box is that the scrolling speed on Firefox is so fast it makes it pretty much unusable. Considering that most Wayland environments don't offer any trackpad scrolling speed setting worth its name, Firefox alone is gonna make you regret your purchase.

That is, unless you try out my custom settings:

You're only four steps away from trackpad heaven.

These settings that I've been using for years make my browsing experience about as good as it was on macOS. If you're not using an Apple Trackpad, you might have to tweak these values a bit.