Tor Browser Fingerprint
May 26, 2016 ยท View on GitHub
Tor Browser and Tails version fingerprinting in Javascript (and some CSS). The PoC can also detect if Tor Browser is running on a Mac OS X. Works up to medium-high privacy settings.
Online demo at: https://tor.triop.se
Screenshots
Demo Video
Responsible Disclosure
The Tor-project was contacted in Jan 2016. But no changes has been made since the root of the problem is located in Firefox.