Wikimedia Bugzilla is closed!

I'm attempting to setup a intranet using XUL. 
Normally an application would behave and stay within the browser window.
However, when using mediawiki it redirects the entire url and removes the XUL
wrapper.

Example:

<window
    xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
    title="Company - Intranet"
    id="standard">
<tabbox orient="vertical" flex="1">
  <tabs>
    <tab label="Mantis" />
    <tab label="Wiki" />
    <tab label="Other" />
  </tabs>
  <tabpanels flex="1">
    <browser src="http://intranet.ZZZZZZ.com/includes/mantis/"/>
    <browser
src="http://intranet.ZZZZZZ.com:16080/includes/mediawiki/index.php/Main_Page"/>
    <browser src="about:blank"/>
  </tabpanels>
</tabbox>
</window>

This will bypass all of the XUL or any other iframe I attempt to wrap it in and
redirect the entire page to the wiki.

I've looked through some of the code and there seems to be no way to turn this
attribute off without drastically effecting the way the wili works. Could this
be an option included in future versions. Something in LocalSettings.php like
$wmAllowFramedWiki = true;

Or if there is a way to do this already can someone point me in the right direction.

Many thanks, great product, and keep up the great work.