Suggestion: Messengers should follow the "On Startup" setting, ie. if they were minimised on browser shutdown they should remain minimised on startup. Currently if the last active status of any messenger was "docked" during a session, the browser always reopens with it docked, even if it was minimised prior to shutdown.

Perhaps the most desirable behaviour, user selectable of course, would be to only re-open a messenger at startup if there are new messages.