Is Tor Browser vulnerable to the HSTS Super Cookies tracking technique described here?

(Initial experimentation with Tor Browser 4.0.3 suggests it's not: I get a different tracking id after selecting "New identity" and revisiting the page)

1 Answer 1


"Implementation Status: Currently, HSTS state is cleared by New Identity, but we don't defend against the creation of these cookies between New Identity invocations" https://www.torproject.org/projects/torbrowser/design/

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.