487937 - "Preferences" window appears on wrong monitor with dual-screen desktops

Status: VERIFIED DUPLICATE of bug 410337

(Firefox :: General, defect)

Description

[Matthew Craig]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.7) Gecko/2009032813 Iceweasel/3.0.6 (Debian-3.0.6-1)
Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.7) Gecko/2009032813 Iceweasel/3.0.6 (Debian-3.0.6-1)

For most Firefox windows, the monitor location where the Firefox application window is located is used.  For example, Tools -> Downloads will display the "Downloads" window in the same monitor as the Firefox window, even when on a secondary monitor.  The "Preferences" window always uses the primary monitor.

Reproducible: Always

Steps to Reproduce:
1.Open Firefox on multi-monitor desktop.  Move application window to a non-primary monitor.
2.Open "Preferences" window with Edit -> Preferences.
3.Observe location of new "Preferences" window.
Actual Results:  
"Preferences" window will appear on primary monitor, while Firefox application window does not.

Expected Results:  
"Preferences" window should appear on the same monitor as the Firefox application window, just like other toolbox windows do.