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Fix Firefox Secure Connection Failed After Update - Troubleshooting Nginx 502 Upstream Connection Refused-How to Fix node-sass Build Failed on npm install

Updated 2026-07-28 09:24:38developer-tools

Fix Firefox Secure Connection Failed After Update - Troubleshooting Nginx 502 Upstream Connection Refused-How to Fix node-sass Build Failed on npm install

Prepare

Execute

Validate

Document

Operational follow-up

Record the exact option, command, or setting that changed the result.
Keep a rollback note if the workflow affects shared files or team settings.

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