[wp-trac] [WordPress Trac] #57995: Popup flickering in Firefox

[WordPress Trac]

#57995: Popup flickering in Firefox
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 Reporter:  robehr79                 |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  Future Release
Component:  TinyMCE                  |     Version:  6.0
 Severity:  major                    |  Resolution:
 Keywords:  has-screenshots has-     |     Focuses:  javascript,
  testing-info needs-patch           |  administration
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Comment (by azaozz):

 Does this still happen? I'm not able to reproduce it in Firefox and
 Chromium in trunk, but this has always been very hard to consistently
 reproduce.

 Also, seems this may be CSS related. Would be great if someone that has
 the time could troubleshoot the CSS and find out if a particular style may
 be causing it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57995#comment:24>
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