Little change to MozillaFirebird's(0.6.1) 'run-mozilla.sh' script

Hi all
Basically this is an update of MozillaFirebird's run-mozilla.sh, it aims
to correct a problem I had with firebird: I couldn't open more than 1
firebird window without creating a new profile(the other profiles being in
use by the other windows).
So here's what it changes: first, it checks whether or not there is an
already running instace of firebird, if there is, it launches
'mozilla-xremote-client', else, it starts 'Mozilla-Firebird-bin'.

Simple...
File is in the attachment.