[wp-trac] [WordPress Trac] #53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox

[WordPress Trac]

#53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox
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 Reporter:  walterebert                |       Owner:  (none)
     Type:  defect (bug)               |      Status:  reopened
 Priority:  normal                     |   Milestone:  Future Release
Component:  Widgets                    |     Version:  5.8
 Severity:  normal                     |  Resolution:
 Keywords:  needs-testing needs-patch  |     Focuses:
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Comment (by prionkor):

 After upgrading to wordpress 5.8 my widget page is broken with this error
 (all white), sidebar and WordPress admin bar still loads.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53529#comment:14>
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