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Fix Firefox Secure Connection Failed Certificate Errors - Fix Windows Search Token Expired Error 0x80090016-Greyed Out Real-Time Protection in Windows Security

Updated 2026-06-15 12:39:11developer-tools
Fix Firefox Secure Connection Failed Certificate Errors - Fix Windows Search Token Expired Error 0x80090016-Greyed Out Real-Time Protection in Windows Security
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.