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Hello firefox, i had lost my firefox account details.

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  • Last reply by Karan Prajapati

Hello, i change my desktop os from windows 8.1 to win 10 for that i had uninstalled firefox details and install new firefox and login with same sync account but i didn't get back my bookmarks, passwords and other stuff. Please check this issue.

Hello, i change my desktop os from windows 8.1 to win 10 for that i had uninstalled firefox details and install new firefox and login with same sync account but i didn't get back my bookmarks, passwords and other stuff. Please check this issue.

All Replies (5)

Did you have any problems when trying to log into Sync in the new operating system?

Like maybe you needed to reset your Sync password?

No i did not any problem in login but in problem in to lost data

Did you remove the Firefox Firefox profile folder when you uninstalled Firefox?

Do you have an "C:\Windows.old" folder?

If you have a "C:\Windows.old" folder with personal data from a previously installed Windows version then you can recover personal data from a previously used profile in this backup.

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

You can copy files like these to the current Firefox profile folder to recover specific data.

  • bookmarks and history: places.sqlite
  • bookmark backups: JSON backups in the bookmarkbackups folder
  • SQLite files like cookies.sqlite (cookies) and formhistory.sqlite (saved form data)
  • logins.json and key3.db (decryption key) for Passwords saved in the Password Manager
  • cert8.db and possibly cert_override.txt for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words you added to the spelling checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other Site Preferences
  • sessionstore.js for open tabs and pinned tabs and tab groups

New thread here - https://support.mozilla.org/en-US/questions/1128571 - about changing the "mozilla" password in each of two separate devices and then losing the data on each.