[tbb-bugs] #17207 [Tor Browser]: Testing navigator.mimeTypes for known names can reveal info and increase fingerprinting risk

[Tor Bug Tracker & Wiki]

#17207: Testing navigator.mimeTypes for known names can reveal info and increase
fingerprinting risk
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     Reporter:  TemporaryNick  |      Owner:  tbb-team
         Type:  defect         |     Status:  new
     Priority:  normal         |  Milestone:
    Component:  Tor Browser    |    Version:
   Resolution:                 |   Keywords:  fingerprinting
Actual Points:                 |  Parent ID:
       Points:                 |    Sponsor:
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Comment (by huseby):

 Or better yet, can you implement it as a mochitest unit test and submit a
 patch?  I think it would be really good for me to start uplifting all of
 these unit tests to mainline.  I figure out a way to make them NOT run by
 default, but it would be great to have them for testing purposes as I re-
 factor and uplift other patches.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17207#comment:2>
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