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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Upgrading to Windows 10 seems to have deleted ALL my stored passwords on Firefox accounts?

  • 3 respostas
  • 1 has this problem
  • 3 views
  • Last reply by Sig

Sig
Sig
more options

I have two Firefox accounts. One of them was logged in and saving all my logins and passwords like normal, all was good... Then I did a Windows 10 upgrade, and these passwords are nowhere to be found on either of my accounts. I thought that these were saved to the account not the computer??? I'm hoping to get these back, because there were a lot... :( Thanks for any advice.

I have two Firefox accounts. One of them was logged in and saving all my logins and passwords like normal, all was good... Then I did a Windows 10 upgrade, and these passwords are nowhere to be found on either of my accounts. I thought that these were saved to the account not the computer??? I'm hoping to get these back, because there were a lot... :( Thanks for any advice.

All Replies (3)

FredMcD
FredMcD
more options

All user data is stored in the Firefox profile in the users computer folder.

What about the rest of your profile? Settings, bookmarks, history, passwords . . . .

Look on your desktop. Do you see a folder called; Old Firefox? Look inside. Look for the folder with the latest creation date.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi Sig, sorry to hear about this problem.

For really major system changes, Windows may move your entire old user folder under a temporary folder:

C:\Windows.old

Can you find such a folder on your system?

If so:

Before proceeding, please set Windows to show you hidden files and folders: https://support.microsoft.com/en-us/help/14201/windows-show-hidden-files

Then check here:

C:\Windows.old\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\

You might just have one profile folder, or you might have more than one. Saved logins use a pair of files, and you can copy them to the Desktop to try in your currently live profile:

  • logins.json
  • key4.db
Sig
Sig Question owner
more options

jscher2000 said
Hi Sig, sorry to hear about this problem. For really major system changes, Windows may move your entire old user folder under a temporary folder: C:\Windows.old Can you find such a folder on your system? If so: Before proceeding, please set Windows to show you hidden files and folders: https://support.microsoft.com/en-us/help/14201/windows-show-hidden-files Then check here: C:\Windows.old\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\ You might just have one profile folder, or you might have more than one. Saved logins use a pair of files, and you can copy them to the Desktop to try in your currently live profile:
  • logins.json
  • key4.db

Sorry, I am not finding such a file and I think it may be because old info such as the old firefox files were stored on a hard drive I recently reformatted...