Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Шукати в статтях підтримки

Остерігайтеся нападів зловмисників. Mozilla ніколи не просить вас зателефонувати, надіслати номер телефону у повідомленні або поділитися з кимось особистими даними. Будь ласка, повідомте про підозрілі дії за допомогою меню “Повідомити про зловживання”

Докладніше
Ця тема перенесена в архів. Якщо вам потрібна допомога, запитайте.
Архівовано

Lost passwords after Windows 11 upgrade

Abdelaziz 34

Hello,

Several passwords were saved by Firefox. They are only saved locally ( no sync with Mozilla account). I recently upgraded my laptop from Windows 10 to Windows 11. Since the upgrade, no password is available in "Saved Password" section. I checked my profile and I can find logins.json file ( with all encypted logins and passwords) and key4.db file. I suppose my passwords cannot be decrypted as they were encrypted with Windows 10.

Is there a way to recover my passwords?

Hello, Several passwords were saved by Firefox. They are only saved locally ( no sync with Mozilla account). I recently upgraded my laptop from Windows 10 to Windows 11. Since the upgrade, no password is available in "Saved Password" section. I checked my profile and I can find logins.json file ( with all encypted logins and passwords) and key4.db file. I suppose my passwords cannot be decrypted as they were encrypted with Windows 10. Is there a way to recover my passwords?

Усі відповіді (4)

Hi

If you do not have a separate backup of your data or have them synced to Firefox on another device, I am sorry, but it is very unlikely that you will be able to recover them.

Paul said

Hi If you do not have a separate backup of your data or have them synced to Firefox on another device, I am sorry, but it is very unlikely that you will be able to recover them.

Thank you for your answer. I didn't sync them to another device but I have a backup of my data. logins.json, key4.db files and all other files of my profile are there.

Змінено Abdelaziz 34

Are those files you have from a separate backup you took before the update?

Paul said

Are those files you have from a separate backup you took before the update?

yes. Migration from Windows 10 to Windows 11 didn't update files under profile. It just seems like password were encrypted with Windows 10 and cannot be uncrypted with Windows 11.

Змінено Abdelaziz 34