USN-1463-5: Unity 2D update

27 June 2012

unity-2d update

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.04


Popup menus were not working in Thunderbird under Unity 2D when started from the launcher.

Software Description

  • unity-2d - Unity interface for non-accelerated graphics cards


USN-1463-2 fixed a bug in Unity 2D exposed by a recent Firefox update. It was discovered that the issue was only partially fixed on Ubuntu 11.04. When Thunderbird was started from the launcher, Thunderbird was still unable to obtain pointer grabs under certain conditions. This update fixes the problem.

Original advisory details:

USN-1463-1 fixed vulnerabilities in Firefox. The Firefox update exposed a bug in Unity 2D which resulted in Firefox being unable to obtain pointer grabs in order to open popup menus. This update fixes the problem.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.04
unity-2d-launcher -

To update your system, please follow these instructions:

After a standard system update you need to restart your Unity 2D session to make all the necessary changes.