Comment 6 for bug 93546

This means that the browser and mail now conflict with each other.

This means that separate menu selections, scripts, or icons for "mozilla" and
"mozilla mail" no longer work independently, or consistently, depdending on what
else is running.

This means that naive users have to be told, "mostly, you can just click on this
to check mail, but if the browser is running, you have to do something
completely different" and "mostly, you just click on this to get to the web, but
if you've got e-mail open...".

This means that users that are NOT used to having tabs can no longer just fire
off multiple sessions and cut-and-paste or compare, as they routinely do with
IE, for example.

This means that, now running mail and the browser as one session but in
different desktops, clicking on a link in an e-mail message will open the link
on another desktop, out of view rather than in front of the user.

If multiple windows are open in one session, and Edit-Preferences is selected in
each, it branches to one and only one copy of the preferences dialog. Is this
impossible across sessions?