[tor-bugs] #12684 [Firefox Patch Issues]: Make "Not Now" the default button for TorBrowser's canvas permission dialogue

[Tor Bug Tracker & Wiki]

#12684: Make "Not Now" the default button for TorBrowser's canvas permission
dialogue
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     Reporter:  isis                 |      Owner:  isis
         Type:  defect               |     Status:  closed
     Priority:  critical             |  Milestone:
    Component:  Firefox Patch        |    Version:
  Issues                             |   Keywords:  tbb-usability, tbb-
   Resolution:  fixed                |  linkability, MikePerry201408R,
Actual Points:                       |  TorBrowserTeam201408
       Points:                       |  Parent ID:
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Comment (by lunar):

 Replying to [comment:35 isis]:
 > > A small warning should be displayed on the top of the page (like when
 NoScript blocks XSS), alongside an “Option” button where access can be
 allowed. “I can see the website does not work as it should, I need allow
 this thing that has been blocked.” And then I don't need to get a deep
 understanding of what “HTML5 canvases” are. But the recent changes are
 already improvements and the latter idea should probably belongs to a
 separate ticket.
 >
 > Hmm. I'm not sure I actually understand what you're suggesting.

 I'm suggesting to use the same notifications used by the pop-up blocker.
 See:

 [[Image(http://www.americanancestors.org/uploadedImages/American_Ancestors/Content/Help/pop_up_firefox_1.jpg)]]

 The browser would say ''Tor Browser prevented this site from extracting a
 dynamically rendered image to protect your privacy''. The option button
 would offer allow once / always allow options.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12684#comment:37>
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