[Bug 27014] New: exo from xfce4 causes "Failed to execute default Web Browser" error in gnome

http://bugs.winehq.org/show_bug.cgi?id=27014

Summary: exo from xfce4 causes "Failed to execute default Web
                    Browser" error in gnome
           Product: Wine
           Version: 1.3.19
          Platform: All
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Hi. Recently, in addition to Gnome I installed xfce.
Now, if firefox already started, and I open URLs in wine, I get this message
box:
******************
Failed to execute default Web Browser.
No child processes.
******************
$ ps -Af
/usr/lib/xfce4/exo-1/exo-helper-1 --launch WebBrowser http://www.winehq.org/

With trial and error I found that the package exo is causing this.
http://www.xfce.org/projects/exo

To reproduce, install just exo package and do:
$ wine start http://www.winehq.org/

It's only in wine. For example, xdg-open works fine.

Window manager Gnome 2, default browser firefox. Wine 1.3.14-1.3.19
exo 0.6.0