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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.

This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.

The :-moz-full-screen-ancestor CSS pseudo-class applies to all ancestors of the full-screen element, except containing frames in parent documents, which are the full-screen element in their own documents. However, those elements' ancestors have this class applied to them.

This pseudo-class has been removed in Firefox 50

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? 10.0 (10.0)-moz
Removed in 50 (50)
? ? ?
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? 10.0 (10.0)
Removed in 50.0 (50)
? ? ?

See also

Document Tags and Contributors

 Contributors to this page: teoli, Sebastianz, Jeremie, velvel53, Sheppy
 Last updated by: teoli,