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

what is imm7woyj and what happens if i delete it?

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

more options

i just found a folder "old firefox data" that was installed yesterday.... "old firefox data" contains the folder imm7woyj... which in turn contains an assortment of files and documents. it is ok to delete the entire folder "old firefox data"?

thank you sandra

i just found a folder "old firefox data" that was installed yesterday.... "old firefox data" contains the folder imm7woyj... which in turn contains an assortment of files and documents. it is ok to delete the entire folder "old firefox data"? thank you sandra

All Replies (2)

more options

Yes, you can delete the folder "Old Firefox Data." Rather than duplicating information, this topic has more information about deleting that folder after a reset: https://support.mozilla.org/en-US/questions/956721

more options

When you reset Firefox then a new profile is created and some personal data (bookmarks, history, cookies, passwords, form data) is automatically imported and the current profile folder will be moved to the desktop to an "Old Firefox Data" folder. Installed extensions and other customizations (toolbars, prefs) that you have made are lost and need to be redone.

It is possible to recover data from the old profile, but be cautious not to copy corrupted files to avoid carrying over problems.