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Re: [tor-bugs] #31512 [Applications/Tor Browser]: Fingerprinting of Tor Browser



#31512: Fingerprinting of Tor Browser
--------------------------------------+--------------------------
 Reporter:  thelamper                 |          Owner:  tbb-team
     Type:  enhancement               |         Status:  closed
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Major                     |     Resolution:  invalid
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by thelamper):

 Is everyone here aware of this cross-browser fingerprinting method?
 http://uniquemachine.org/
 #
 More info available here :
 https://arstechnica.com/information-technology/2017/02/now-sites-can-
 fingerprint-you-online-even-when-you-use-multiple-browsers/
 http://yinzhicao.org/TrackingFree/crossbrowsertracking_NDSS17.pdf

 If this is already discussed point me to the relevant ticket.

 Disabling javascript is the obvious defense to this. webGL is already
 disabled by default in the Tor Browser, so all ok there right? disabling
 the microphone is another measure to take. i cant see that WindowsOS has
 the option to disable speakers aside from turning the volume down to 0 for
 all apps (or for just for the Tor Browser). is running the Tor Browser in
 a virtual machine or in Tails a bit overkill to be absolutely sure of
 preventing cross-browser fingerprinting?

 I tested the uniquemachine.org webpage on the Tor Browser on my device and
 it got stuck on 'fingerprinting GPU' and the display of graphics. probably
 due to webGL disabled but i cant be certain.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31512#comment:14>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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