We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

This thread was archived. Please ask a new question if you need help.

Data Recovery

  • 1 jibu
  • 1 ana tatizo hili
  • 1 view
  • Last reply by cor-el

varunvora9898859131
varunvora9898859131
more options

I was using Firefox as my default browser and had data like bookmarks, add-ons for everyday use, etc. but after I reinstalled windows and installed Firefox again I forgot which email was link to my data as I had multiple emails logged in. Now I have tried 2-3 emails which didn't work in bringing my data back and I don't remember the password of my other emails, I can recover them by forgot password but I it says resetting password will clear history bookmarks, etc.| I can afford to loose history and saved passwords but is there a way I can get Firefox back to my configuration and add-ons, etc I was using previously?

PS: I do have windows.old file after windows installation-If it could help./

I was using Firefox as my default browser and had data like bookmarks, add-ons for everyday use, etc. but after I reinstalled windows and installed Firefox again I forgot which email was link to my data as I had multiple emails logged in. Now I have tried 2-3 emails which didn't work in bringing my data back and I don't remember the password of my other emails, I can recover them by forgot password but I it says resetting password will clear history bookmarks, etc.| I can afford to loose history and saved passwords but is there a way I can get Firefox back to my configuration and add-ons, etc I was using previously? PS: I do have windows.old file after windows installation-If it could help./

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check if that C:\Windows.old folder has your previous Firefox profile folder.

The prefs.js file in the profile folder stores the email (username) as a pref named "services.sync.username". Also the logins.json file stores the credentials to connect to Sync (chrome://FirefoxAccounts). You would need to restore logins.json and key4.db to recover the logins.