Microsoft Dynamics CRM 2011 – The webpage you are viewing is trying to close the window

This message has been around for ages. A customer experienced the message below and wanted it turned off. Therefore, since I have done this many times before  I should blog this basic change.

The Customer Issue:

When CRM is opened with Internet Explorer the users gets a dialog pop-up that says:

The webpage you are viewing is trying to close the window. Do you want to close the window?"  

The Fix:

Turn off Application Mode.

To do this, update the following in CRM:

Settings > Administration> System Settings > Customization

Disable
Open Microsoft Dynamics CRM in Application mode.

Once you have done this, close CRM and re launch the CRM via Internet Explorer.