Magic Banana's solution works too. But one strange thing to note:If i set it the way as suggested by you it isn't possible to start the browser via...
$ x-www-browser ...or... $ gnome-www-browser both commands just bring up this message --> /usr/bin/env: ./Browser/execdesktop: Datei oder Verzeichnis nicht gefundenIf you configure TBB as default browser the way i wrote above, both commands launch the browser normally.
