A Group Policy setting to prevent the tabs from closing does not work in Internet Explorer 9

Applies to: Internet Explorer 9

Symptoms


In your environment, you configure a Group Policy setting to prevent the tabs in Internet Explorer from closing. You expect that, when a tab is closed, a dialog box appears and the tab is prevented from closing. However, on a computer that has Internet Explorer 9 installed, the Group Policy setting does not work.

Cause


This problem occurs because Internet Explorer 9 introduces a new feature, known as fast tab shutdown, that hides a tab during shutdown. Unfortunately, the code that executes fast tab shutdown runs before the Group Policy Object settings are queried. Therefore, the tab in Internet Explorer 9 is hidden but is not successfully closed.

Resolution


To resolve this problem, install this update.

Security update information

To resolve this issue, install the most recent cumulative security update for Internet Explorer. To do this, visit the following Microsoft website:For more technical information about the most recent cumulative security update for Internet Explorer, visit the following Microsoft website:Note This update was first included in security update 2618444.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2618444 MS11-NNN: Cumulative Security Update for Internet Explorer: December 13, 2011

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates