[tor-bugs] #6253 [Firefox Patch Issues]: Prompt before allowing HTML5 Canvas image extraction

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#6253: Prompt before allowing HTML5 Canvas image extraction
-------------------------------------+--------------------------------------
    Reporter:  mikeperry             |       Owner:  mikeperry                    
        Type:  defect                |      Status:  closed                       
    Priority:  major                 |   Milestone:                               
   Component:  Firefox Patch Issues  |     Version:                               
  Resolution:  fixed                 |    Keywords:  tbb-fingerprinting, interview
      Parent:                        |      Points:                               
Actualpoints:  8                     |  
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Changes (by proper):

 * cc: adrelanos@… (added)


Comment:

 This is quite confusing. I added the message here so it can found by
 search engines more easily.

 {{{
 This website (%S) attempted to access
 image data on a canvas. Since canvas image
 data can be used to discover information about
 your computer, blank image data was returned
 this time.
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6253#comment:5>
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