Firefox 60 ESR does not work with embedded Java applications

Solution Verified - Updated -

Issue

  • Why do Java applications in websites no longer work after upgrading to Firefox 60 ESR?
  • After upgrading from Firefox 52 ESR, embedded Java applications no longer work.

Environment

  • Red Hat Enterprise Linux 6.10 or 7.5
  • Firefox 60 Extended Support Release (ESR)

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