What is about config in Firefox?

Related questions

1. Did Firefox not connect potential security issues?
2. What does Net :: Err_cert_date_invalid mean?
3. What does it mean by your connection is not private?
4. Where is about config Firefox?
5. How do know if a website is secure?
6. Why is my connection not secure?
7. What is Ssl_error_rx_record_too_long?
8. What does error code Ssl_error_rx_record_too_long mean?
9. Why is Google not secure?
10. Why do we need a configuration file?

Tags

1. #changing
2. #prefs
3. #lists
4. #defaults
5. #strange
6. #config
7. #profile
8. #these
9. #break
10. #advanced
11. #preferences
12. #files
13. #sometimes
14. #firefox
15. #warning
16. #behavior
17. #about
18. #configuration
19. #known
20. #cause
21. #application
22. #editor
23. #settings