Version 14 of the Mozilla Firefox browser, released Tuesday, offers several new security-related features as well as patches for numerous vulnerabilities.
The release of Firefox 14.0.1 was accompanied by 14 security advisories, five of which were rated as critical by Mozilla.

One of the critical advisories covers a vulnerability in the "javascript: URL" function that could allow attackers to bypass the JavaScript sandbox and execute malicious scripts with elevated privileges.

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