[tbb-bugs] #18602 [Tor Browser]: Make sure our SVG disabling patches work with SVG favicons

[Tor Bug Tracker & Wiki]

#18602: Make sure our SVG disabling patches work with SVG favicons
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  task         |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Normal       |   Keywords:  ff45-esr
Actual Points:               |  Parent ID:
       Points:               |   Reviewer:
      Sponsor:               |
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 https://bugzilla.mozilla.org/show_bug.cgi?id=366324 landed the support for
 SVG favicons. We should make sure that these are disabled properly on
 level High on our Security Slider and that there are no crashes involved.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18602>
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