Mozilla Foundation Security Advisory 2012-102
Title: Script entered into Developer Toolbar runs with chrome privileges
Announced: November 20, 2012
Reporter: Masato Kinugawa
Fixed in: Firefox 17.0
Security researcher Masato Kinugawa reported that when script is entered into the Developer Toolbar, it runs in a chrome privileged context. This allows for arbitrary code execution or cross-site scripting (XSS) if a user can be convinced to paste malicious code into the Developer Toolbar.