Firefox crashes when opening a stream

[Marsu]

Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.0.13) Gecko/2009080315 Ubuntu/9.04 (jaunty) Firefox/3.0.13

1) Release: 9.04
2) firefox:
  Installiert: 3.0.13+nobinonly-0ubuntu0.9.04.1
  Kandidat: 3.0.13+nobinonly-0ubuntu0.9.04.1
  Versions-Tabelle:
 *** 3.0.13+nobinonly-0ubuntu0.9.04.1 0
        500 http://de.archive.ubuntu.com jaunty-updates/main Packages
        500 http://security.ubuntu.com jaunty-security/main Packages
        100 /var/lib/dpkg/status
     3.0.8+nobinonly-0ubuntu3 0
        500 http://de.archive.ubuntu.com jaunty/main Packages
3) I wanted to play a stream, namely the following:
first go to http://www.dieneue1077.de/1077_cms/stream/index.php, then click on "die neue 107.7 mit dem livesong-radio", last click on "Direkt online hören". Normally a small window with an imbedded player should open, but all tabs are closed without any error message!