Security researchers say the initial fix, issued in mid-December, was designed to address vulnerabilities in Firefox, SeaMonkey and Mozilla's Thunderbird e-mail client. But that particular fix introduced a flaw that could allow JavaScript code from Web content to be exploited, then lead to the execution of arbitrary code.
Mozilla advises Firefox users to upgrade to version 1.5.0.10 and 2.0.0.2, and SeaMonkey users to update to version 1.1.1 and 1.0.8.
http://news.com.com/Security+flaws+found+in+fix+for+Firefox,+SeaMonkey/2100-1002_3-6164702.html?tag=html.alertBe careful out there.
