Mozilla Firefox Security Bypass Vulnerability July-11 (Windows)

Summary
The host is installed with Mozilla Firefox and is prone to security bypass vulnerability.
Impact
Successful exploitation allows remote attackers to trigger an installation dialog for a add-on or theme. Impact Level: Application
Solution
Upgrade to Firefox version 5.0 or later http://www.mozilla.com/en-US/firefox/all.html
Insight
The flaw is due to firefox does not properly enforce the whitelist for the xpinstall functionality, which allows a non-whitelisted site to trigger an install dialog for add-ons and themes.
Affected
Mozilla Firefox versions before 5.0.
References