In the XUL world, Chrome is the top level window which contains groups of UI elements of various types. Example of chrome are the <b>browser window</b> and <b>dialog window</b>.

=Chrome in depth=

Acoording to WierdAl (#developers), Firefox uses the toolkit approach: [http://developer.mozilla.org/en/docs/chrome.manifest Chrome Registration - MDC] whereas SeaMonkey uses the old way (xpfe).

==Code Registry Example==

*Line 14: <pre>override chrome://package/type/original-uri.whatever new-resolved-URI [flags]</pre>

**The purpose of this is to override a chrome file provided by the application or XULRunner with a new extension or embedder.

=Additional Info=

*[http://www.g4tv.com/screensavers/features/41046/Create_a_Mozilla_Extension_pg3.html Create a Mozilla Extension]

*[http://www.mozilla.org/unix/customizing.html Customizing Mozilla]

=Resources=