406295 - Autoscroller (Middle mouse button) causes the window to disappear. Cannot right-click to view/minimize/maximize or close without using "End Task" in Task Manager. It simply disappears from the screen and all that's left is the desktop.

Status: RESOLVED DUPLICATE of bug 405899

(Firefox :: General, defect)

Description

[salubrious.k]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b2pre) Gecko/2007113005 Minefield/3.0b2pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b2pre) Gecko/2007113005 Minefield/3.0b2pre

This has happened several times, and I didn't exactly know why at first. But then I realized it happened every time I went to middle-click a link (so that the link will open in a new tab) but miss, which causes the window to disappear from view. The only way to get it working again is to "end task" in task manager then open the program.
 
Whenever I middle-click in the middle of the webpage where there isn't a link the window just disappears. This has happened since the update from last night, which was some time around 24 hours ago. I've had to be careful ever since to middle-click correctly on a link, because if I miss the link the window disappears.

Reproducible: Always

Steps to Reproduce:
1. Middle-click in the middle of the webpage where there isn't a link of some sort.
Actual Results:  
The entire program windows disappears and one can see the desktop. Can't right-click the title bar in order to open/minimize/maximize/close.

Expected Results:  
Create an autoscroller icon since the middle-click was in the midst of the webpage.

I am using the default theme of Minefield.