Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why do my settings revert to the upgrade default every time I open Firefox?

  • 5 replies
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

more options

I upgraded to 10.0.2 and every time I open Firefox, my home page reverts to the default and the last file I downloaded appears in the download status bar (yes, I reset my home page and cleared the status bar).

I upgraded to 10.0.2 and every time I open Firefox, my home page reverts to the default and the last file I downloaded appears in the download status bar (yes, I reset my home page and cleared the status bar).

All Replies (5)

more options

Please read Preferences are not saved, let me know if it helps.

more options

Which security software (firewall, anti-virus) do you have?

Some security software has virtualization features that can cause problems by protecting and restoring files in the Firefox profile folder.

more options

I tried to delete prefs.js, but was unable to because it was corrupted.

more options

I have Malwarebytes' Anti-Malware. I haven't run it since the upgrade, if that matters.

more options

You can do a disk check with the chkdsk.exe program.

If you run the chkdsk.exe program from a cmd.exe Command window then you can read the response from the chkdsk.exe program.

Open a cmd.exe window:
Start > Run: cmd.exe <press Enter>
At the command prompt (>) type or Copy&Paste: chkdsk.exe /f /r <press Enter> (put a space before /f and /r)

If you get something like: Would you like to schedule this volume to be checked the next time the system restarts? y/n then answer the question with "Y" and close all programs and reboot the computer.