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    This article is in need of a technical review.

    This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

    The DOM MozMousePixelScroll event is fired asynchronously when a mouse wheel or similar device is operated. It's represented by the MouseScrollEvent interface.

    If you want to prevent the default action of mouse wheel events on Gecko 17 (Firefox 17) or later, you need to call preventDefault() of wheel because if two or more wheel events caused only 1 pixel scroll, this event wouldn't be fired.

    Use standardized wheel event if available.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support Not supported 3.5 (1.9.1) Not supported Not supported Not supported
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported 1.0 (1.9.1) Not supported Not supported Not supported

    detail value

    Positive value indicates scroll to bottom. Negative value indicates scroll to top.

    The detail value indicates the scroll amount in pixels to scroll.

    Trusted events are never fired with 0.

    If native mouse wheel event indicates the scroll amount in lines or pages, the value is computed with the line height or page width or page height of the nearest ancestor scrollable element from the event target.

    See also

    Document Tags and Contributors

    Contributors to this page: teoli, Masayuki, kscarfone
    Last updated by: teoli,