Firefox Profile Missing Troubleshooting Checklist
When Firefox starts but shows none of your bookmarks, passwords, or extensions, the profile may b...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation Version Mismatch Due to Incorrect Edition
You install or upgrade Windows, then see an activation error like “The version of Windows you hav...
Fix Windows Update SSL Certificate Error After Time Change
If you've recently changed the system time on your Windows computer and now see an SSL certificat...
Fix Chrome Profile Connection Refused Error
You open Chrome and see "Connection refused" or "ERR_CONNECTION_REFUSED" for every site, or only ...
Fix PuTTY Network Error: Connection Refused on Ubuntu
When you try to connect to an Ubuntu machine using PuTTY and see "Network error: Connection refus...
Fix Outlook SSL Certificate Error 0x80048820
You try to connect Outlook to your email server and see error 0x80048820. The full message often ...
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