[tbb-bugs] #15640 [Tor Browser]: Place Canvas MediaStream behind site permission

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Apr 9 00:26:42 UTC 2015

#15640: Place Canvas MediaStream behind site permission
 Reporter:  mikeperry                     |          Owner:  tbb-team
     Type:  defect                        |         Status:  new
 Priority:  normal                        |      Milestone:
Component:  Tor Browser                   |        Version:
 Keywords:  ff45-esr, tbb-fingerprinting  |  Actual Points:
Parent ID:                                |         Points:
 The Canvas is specified as a potential MediaStream source, to allow live
 video capture of  Canvas data by Javascript. This is a fingerprinting
 risk, and should be placed behind our Canvas site permission.


 Apparently support for this has not yet been added to Firefox, but they
 are currently working on landing it. Adding the ff45-esr tag accordingly.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15640>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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