about: blank windows

Mozilla Firefox 2.0.0.5, Thunderbird 2.0.0.5 and before 1.5.0.13, and SeaMonkey 1.1.3 allows remote attackers to conduct cross-site scripting XSS attacks with chrome privileges via an addon that inserts a 1 javascript: or 2 data: link into an about:blank document loaded by chrome via a the...