This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

How come when I close firefox, and reopen it, my persona keeps reverting to one that I stopped using (and uninstalled) weeks ago?

  • 3 tontu
  • 6 am na jafe-jafe bii
  • 7 views
  • i mujjee tontu mooy cor-el

more options

Used a Pokemon Black / White persona for about a week, and then got some new ones. I disabled the Pokemon persona and switched to new ones, but when I restart firefox, it reverts back to the Pokemon persona. I even uninstalled the Pokemon persona in my addons section, and somehow it's still reverting back to that.

Used a Pokemon Black / White persona for about a week, and then got some new ones. I disabled the Pokemon persona and switched to new ones, but when I restart firefox, it reverts back to the Pokemon persona. I even uninstalled the Pokemon persona in my addons section, and somehow it's still reverting back to that.

All Replies (3)

more options

The data of the used persona is stored in the file prefs.js in the Firefox Profile Folder, so you may have a problem with that file.

See:

more options

I renamed my prefs.js to "prefs.jsOLD" so that FF would generate a new file upon startup, and after closing it and reopening it, it's still reverting the persona to the deleted one.

more options

Did you check the date and time or compared the content of the file prefs.js?

The data of the currently selected persona are stored as the first entry in the pref lightweightThemes.usedThemes.

Do you have software that may be protecting .js files in the Firefox Profile Folder


  • Help > Troubleshooting Information > Profile Directory: Open Containing Folder