[Bug 830328] [NEW] When restoring a previous Firefox session, minimised windows appear briefly

[James Haigh]

Public bug reported:

When restoring from many windows and tabs, windows flicker around for a
while. This includes windows that were minimised when Firefox was
closed. The window opens then minimises a moment later, unless it is the
original window which stays unminimised.

Tested on Natty.

Steps to reproduce:
* Start a guest session.
* Launch Firefox.
* Edit Preferences to 'Show my windows and tabs from last time'.
* Hold Ctrl-T for a second.
* Load a specific page to make a note of the original window. (Ex: ddg.gg)
* Press Ctrl-N.
* Hold Ctrl-T for a second.
* Repeat the previous 2 steps until there are 10 windows in total.
(See screenshot '10-windows.png')
* Press Super-D.
* Press Alt-Tab.
(See screenshot 'all-but-1-minimised.png')
Notice that only 1 window is unminimised and it isn't the original.
* Press Ctrl-Q.
* Launch Firefox.
(See screenshot 'bugs-on-restore.png')
Notice the flickering of windows appearing and minimising.
Notice that the original window is unminimised, so there are now 2 unminimised windows.

Minimised windows shouldn't even appear; they should /start/ minimised.
The original window should also stay minimised.


Other bugs:
I expect you will also trigger this bug: https://bugs.launchpad.net/unity/+bug/803831
Notice also that in half of the windows, globalmenu-extension stops working. (See screenshot 'restored-unminimised.png')

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/830328

Title:
  When restoring a previous Firefox session, minimised windows appear
  briefly

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