Why this frame is not displayed in firefox ?

I am trying to integrate this plugin http://www.staniscia.net/demo-odyno-googlegroups/  , to my website and it does not show anything on firefox browser. but it displays well in chrome browser,

Please suggest to display on my website.
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Loganathan NatarajanLAMP DeveloperAsked:
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Dave BaldwinFixer of ProblemsCommented:
I get this in the Firefox Error Console:
Security Error: Content at https://groups.google.com/ may not load data from http://www.staniscia.net/demo-odyno-googlegroups/.
Timestamp: 8/30/2013 9:14:39 PM
Error: Load denied by X-Frame-Options: https://groups.google.com/ does not permit framing by http://www.staniscia.net/demo-odyno-googlegroups/.

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That says that Google Groups is not allowing it.

It does load in Chrome but it shows the same messages about 4 or 5 times.

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Dave BaldwinFixer of ProblemsCommented:
It displays a big warning in IE8 about "This content cannot be displayed in a frame".  It does work in Opera and in Safari on my Mac.  More info here: https://developer.mozilla.org/en-US/docs/HTTP/X-Frame-Options
Loganathan NatarajanLAMP DeveloperAuthor Commented:
Thanks DaveBaldwin.

Is there any solution to integrate google group in my website (wordpress)?
Dave BaldwinFixer of ProblemsCommented:
I don't know.  I don't see anything on the Google Groups pages about displaying their content on other pages.
Loganathan NatarajanLAMP DeveloperAuthor Commented:
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