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Fix 'Secure Connection Failed' Error in Firefox for Android - Resolve Nginx 502 Bad Gateway in Docker on Ubuntu-Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

2026-07-28 23:42:05browser-issues
Fix 'Secure Connection Failed' Error in Firefox for Android - Resolve Nginx 502 Bad Gateway in Docker on Ubuntu-Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

Final checklist

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

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