[tbb-bugs] #12682 [Tor Browser]: Tor Browser's HTML5 canvas fingerprinting dialogue could use a "Revoke" button

[Tor Bug Tracker & Wiki]

#12682: Tor Browser's HTML5 canvas fingerprinting dialogue could use a "Revoke"
button
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     Reporter:  isis     |      Owner:  tbb-team
         Type:           |     Status:  new
  enhancement            |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  tbb-usability, tbb-linkabillity,
  Browser                |  tbb-firefox-patch
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by harmony):

 In the course of resolving a help desk ticket in which the user claimed to
 have permanently disabled this warning across TB sessions, I tried to use
 about:permissions to view/change the stored preference, but nothing showed
 up. I advised the user to reinstall Tor Browser, but I don't know whether
 there is a more efficient way of doing this.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12682#comment:2>
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