Created attachment 8906669 [details] horizontal scrolling.mov User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3212.0 Safari/537.36 Steps to reproduce: Firefox Trunk 57.0a1 (2017-09-11) (64-Bit) macOS 10.12.6 1.) Shrink a window, so that the vertical and the horizontal scrollbar are visible 2.) Use Trackpad/Magic Mouse to scroll a bit by leaving the finger on it Actual results: It is not possible to scroll straight ahead with the Trackpad/Magic Mouse. Expected results: Scrolling is too sensible. Compare it with Safari or Chrome.
Component: Untriaged → Layout
OS: Unspecified → Mac OS X
Product: Firefox → Core
Moving to Widget:Cocoa. The request is to have the scroll gesture more closely match Safari's horizontal/vertical thresholds. Page Layout is already correct.
Component: Layout → Widget: Cocoa
Priority: -- → P3
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