Chrome-only CSS reference

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This page lists CSS properties that are only available in Gecko Chrome code (and sometimes in other privileged circumstances, eg. UA stylesheets.)

Note: Most of the CSS properties exposed to the Web in general are also usable in Chrome stylesheets: see the CSS documentation for a list of these.

The -moz-bool-pref() @supports condition is available to Gecko chrome and UA stylesheets to check if a boolean preference is enabled.
The -moz-window-dragging CSS property specifies whether a window is draggable or not. It only works in Chrome code, and only on Mac OS X.
Firefox supports the following -moz- prefixed XUL display values:

See also

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Contributors to this page: ExE-Boss
Last updated by: ExE-Boss,