Fix Firefox Secure Connection Failed DNS Error - Chrome Sync Blocked at Work? Fix It-Fix Git Detached HEAD in IntelliJ

Updated 2026-07-28 03:31:21developer-tools
Fix Firefox Secure Connection Failed DNS Error - Chrome Sync Blocked at Work? Fix It-Fix Git Detached HEAD in IntelliJ
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.