[tor-bugs] #7084 [Firefox Patch Issues]: ‘Canvas image extraction prompt’ displays useless message

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#7084: ‘Canvas image extraction prompt’ displays useless message
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 Reporter:  rransom               |          Owner:  mikeperry
     Type:  defect                |         Status:  new      
 Priority:  normal                |      Milestone:           
Component:  Firefox Patch Issues  |        Version:           
 Keywords:                        |         Parent:           
   Points:                        |   Actualpoints:           
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 From `0021-Add-canvas-image-extraction-prompt.patch`:
 {{{
 +canvas.siteprompt=This website (%S) attempted to access image data on a
 canvas.  Blank (white) image data was returned this time.
 }}}

 Why should I care?  (OK, ''I'' know this is a fingerprinting risk, but
 please explain that to the user you just popped up a message box at.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7084>
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