Firefox & Exchange 2010 Critical Error

After updating Firefox today I encountered the following error when trying to work with the Exchange Control Panel in Exchange 2010 RTM:

Going by the message, “Permission denied for .. to get property Windows.frameElement from”, it looks like a cross-site frame protection issue. I don’t know if the update is responsible for this (Firefox 3.6.8) or this is also the behaviour of earlier Firefox versions. I checked it against IE and that has no issue.

So far for multi-browser support.

This entry was posted in Exchange 2010 by Michel de Rooij. Bookmark the permalink.

About Michel de Rooij

I'm a Microsoft 365 Apps & Services MVP, with focus on Exchange Server, AzureAD, Microsoft 365 and with a PowerShell affection. I'm a consultant, publisher of EighTwOne, published author, and speaker. You can find me on Twitter, LinkedIn, Facebook.

2 thoughts on “Firefox & Exchange 2010 Critical Error

  1. I’m having the same thing happen to me in Firefox (I’m using 9.0.1) where I get the following error message:

    Error: Permission denied for to get property Window.frameElement

    Kind of annoyed because it keeps happening even when I close the window. It comes back again! Anything fixed on your end?


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