This module exploits a vulnerability found on Firefox 17.0.6, specifically a use after free of a DocumentViewerImpl object, triggered via a specially crafted web page using onreadystatechange events and the window.stop() API, as exploited in the wild on 2013 August to target Tor Browser users.
Windows
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
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