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    Returns the Element that is currently being presented in full-screen mode in this document, or null if full-screen mode is not currently in use.


    var element = document.mozFullScreenElement;

    On return, element is the element that is currently in full-screen mode, or null if full-screen mode isn't currently in use by the document.


    function isVideoInFullsreen() {
      if (document.mozFullScreenElement && document.mozFullScreenElement.nodeName == 'VIDEO') {
        console.log('Your video is playing in fullscreen');


    See Using full-screen mode for details and examples.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support ? 9.0 (9.0) ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support ? 9.0 (9.0) ? ? ?


    This method has been proposed in the specification draft

    See also

    Document Tags and Contributors

    Last updated by: teoli,
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