473909 - When using multiple desktops from sysinternals (microsoft), you cannot load more than one instance of firefox

Status: RESOLVED DUPLICATE of bug 135137

(Firefox :: Shell Integration, defect)

Description

[forumsid987]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5

http://technet.microsoft.com/en-us/sysinternals/cc817881.aspx

after installing this program, you cannot have two separate firefox instances running on two different desktops.  IE can handle it but firefox cant.  This desktop program is likely something that will be implemented in windows 7 so I think this issue is important

Reproducible: Always

Steps to Reproduce:
1. install http://technet.microsoft.com/en-us/sysinternals/cc817881.aspx
2. open firefox on one desktop
3. switch to another desktop and try to run firefox
Actual Results:  
i got a firefox error

Expected Results:  
firefox should have opened

Comment 1

[Radek 'sysKin' Czyz]

Sysinternals 'desktops' creates separate explorer processes for each desktop. Any program started from one desktop can't communicate with programs started from another.

Unless there's some special way for them to communicate after all, this is pretty much bug 135137.

I sure hope 7 will solve the problem in a more conventional way. "desktops" has many more limitations caused by this fundamental design decision. Many other programs don't work on two desktops either (such as instant messengers).

Comment 2

[Matthias Versen [:Matti]]

You can only run one instance of firefox with one firefox profile.