mozilla-xremote-client with profiles not working?

I have an application built on top of firefox that I need running in
addition to my standard firefox browser. I use mozilla-xremote-client
to open up links from thunderbird (and others). My problem is that I
often get a new tab in my application rather than the main firefox
window.

My application runs with a different profile than the main window, so I
thought
"mozilla-xremote-client -p appprofile" would work, but no such luck. It
always
says that it "Failed to find a running server."  I looked at the source
a little bit, and it seems that iot is looking for a window with the
specified value in the _MOZILLA_PROFILE property, but it doesn't seem
to be set. In fact, I can't find this property being set by firefox at
all. It seems quite odd that mozilla-xremote-client would check for a
property that firefox does not set.

Any help would be appreciated.

Brian Utterback