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Fix Firefox Secure Connection Failed Certificate Errors - Troubleshoot VSCode Extension Host Permission Denied-How to Fix OpenVPN Firewall Blocking Connection

2026-06-13 20:19:45developer-tools
Fix Firefox Secure Connection Failed Certificate Errors - Troubleshoot VSCode Extension Host Permission Denied-How to Fix OpenVPN Firewall Blocking Connection

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.