Fix Chrome Profile Error When Starting Browser - Fix Firefox Not Responding When Opening a New Tab-Windows Defender Connection Refused Fix

Updated 2026-06-14 00:56:31macos-help
Fix Chrome Profile Error When Starting Browser - Fix Firefox Not Responding When Opening a New Tab-Windows Defender Connection Refused Fix
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.