Comment 1 for bug 366103

[Reported in Launchpad as <http://launchpad.net/bugs/366103>]

Firefox 3.0.9, Ubuntu 9.04

Canonical has begun user testing of Ubuntu and its applications. During our first test, one test subject double-clicked on the Firefox launcher in the panel. She managed to do this at exactly the right/wrong speed to produce a "Close Firefox" error alert: "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."

I have been unable to reproduce this error using the panel launcher, but it is reproducible from the terminal. Steps to reproduce:
1. In a terminal window, enter "firefox & firefox".

What happens:
* A Firefox window appears.
* A "Close Firefox" error alert appears.

What should happen:
* Two Firefox windows should appear.
* No error alert should appear.