Are you running a 32-bit Firefox or 64-bit? I _think_ the touchscreen thing was only fixed for 32-bit for the Firefox 52 release, and the fix for 64-bit will b

Are you running a 32-bit Firefox or 64-bit? I _think_ the touchscreen thing was only fixed for 32-bit for the Firefox 52 release, and the fix for 64-bit will be in Firefox 54. I'll see about getting the release notes fixed to reflect that.