Firefox Profile Missing Troubleshooting Checklist - Windows 11 Outlook Cache: Where It Is and How to Clear It-Fix Chrome 'Unable to Open Profile' Error
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.