There is such a unique issue with Firefox's inertial scrolling on Linux that's super hard to explain.
With normal inertial scrolling you kinda "fling" the page, right? Like, a hard two finger swipe up followed by lifting your fingers off the trackpad leads the page to keep scrolling. Normally with that kind of system you can put your fingers back onto the trackpad and "catch" the page so it stops scrolling.
Firefox on Linux doesn't do that, and will only cancel the "fling" when you scroll again. So, instead of just needing to rest my fingers on the trackpad again, I need to put them on the trackpad then scroll up or down to cancel the fling. It's a really subtle issue, so I'm not exactly sure how to look it up to see if it's been reported or how to report it as an issue.
