Security researchers are cooperating closely with the Tor Project team to create a "hardened" version of the Tor Browser. They promise to implement new anti-hacking measures that could dramatically improve the anonymity of users and further frustrate the efforts of law enforcement agencies across the globe. Specifically, the researchers are currently testing "Selfrando," a feature made to protect against browser exploits such as the one reportedly used by the FBI.

Read here the paper backing the developments.