[tor-bugs] #17999 [Tor Browser]: Changed default GUI font might help fingerprinting JA Windows users

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#17999: Changed default GUI font might help fingerprinting JA Windows users
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Normal       |   Keywords:  tbb-fingerprinting-fonts
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
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 As yawning noted in #17550 the default GUI font changed across Windows
 versions:

  * Windows XP -> `MS UI Gothic` (Not sure if this needs to be localized,
 don't have a box with this)
  * Windows Vista/7 -> `メイリオ`
  * Windows 8/8.1 -> `Meiryo UI`
  * Windows 10 -> `Yu Gothic UI`

 This might aid in fingerprinting JA users which are on Windows.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17999>
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