404. That’s an error.

The requested URL /bookmarks/mark?op=add&bkmk=https%3A%2F%2Fwww.pro-linux.de%2Fsicherheit%2F2%2F31959%2Fsicherheit-mehrere-probleme-in-mozilla-firefox-aktualisierung.html&title=Sicherheit%3A+Mehrere+Probleme+in+Mozilla+Firefox+%28Aktualisierung%29+-+Security+-+Pro-Linux was not found on this server. That’s all we know.