Comment 94 for bug 411358

It's been quite a while since I've looked at this bug as I no longer hit it myself due to using a new linux distro with a full GIO implementation, plus I no longer regularly receive the kind of emails which trigger this...

Please read back to comments 67 through to 70 ( https://bugzilla.mozilla.org/show_bug.cgi?id=541130#c70 ) where we established that there are significantly different ways to hit the same problem.

For anyone running RHEL or CentOS I'm going to hazard a guess that you're not hitting the cause I encountered under Ubuntu, but instead the cause that jhorak discovered, whereby the very old version of GVFS in Red Hat has a bug whereby these messages will always be shown in a pop-up console window.

I think the only way forward to cleanly fix this issue if for Thunderbird to contain an exception that if it thinks it's found a possible URL and wants to seek a handler - if that string contains a '+' sign and either GVFS or GIO are in use, then do not look for a handler.

hope this helps.
Jonathan