Let me just start with: amazing browser, thank you to the dev team! But there one very annoying problem. The fling speed in Firefox Classic mobile (I am using Android) is way too sensitive. I used to customize this on older version by changing "apz.fling_accel_interval_ms" from 750ms to 250ms which is perfect enough balance between 'wanting to scroll fast' vs 'casual scrolling'. But I cannot access about:config anymore on the newer version and it's very frustrating to see my casual flicks zipping past what I wanted to browse, having to scroll up again to find it. Very inconvenient. Please either add an option to edit this fling value, change to 250ms as default, or regain access to about:config on mobile. Also for other people in the community, try 250ms for this setting on Firefox Beta and see if it's any better for you guys. I found it much less cumbersome when scrolling. Thank you again.