Argument injection vulnerability in Apple QuickTime 7.1.5 and earlier, when running on systems with Mozilla Firefox before 2.0.0.7 installed, allows remote attackers to execute arbitrary commands via a QuickTime Media Link (QTL) file with an embed XML element and a qtnext parameter containing the Firefox "-chrome" argument.  NOTE: this is a related issue to CVE-2006-4965 and the result of an incomplete fix for CVE-2007-3670.