hello, thanks for providing a crash id - this appears to be a problem with malware, so please run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes], [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner], [http://www.microsoft.com/security/scanner/default.aspx microsoft safety scanner] & [http://www.kaspersky.com/security-scan kaspersky security scan]. [[Troubleshoot Firefox issues caused by malware]]