If you follow us on Twitter, you must be aware that since yesterday we have been warning Mac and Linux users of the Tor anonymity browser about a critical vulnerability that could leak their real IP addresses to potential attackers when they visit certain types of web pages.
Discovered by Italian security researcher Filippo Cavallarin, the vulnerability resides in FireFox that eventually also
Source: Warning: Critical Tor Browser Vulnerability Leaks Users’ Real IP Address—Update Now