--- thunderbird	2006-03-08 07:04:19.000000000 -0500
+++ thunderbird.new	2006-04-20 14:14:41.864224000 -0400
@@ -179,7 +179,7 @@
 then
   echo $dist_bin/run-mozilla.sh $script_args $dist_bin/$MOZILLA_BIN "$@"
 fi
-"$dist_bin/run-mozilla.sh" $script_args "$dist_bin/$MOZILLA_BIN" "$@"
+exec "$dist_bin/run-mozilla.sh" $script_args "$dist_bin/$MOZILLA_BIN" "$@"
 exitcode=$?
 
 ## Stop addon scripts