Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Firefox Synced over my Backups, Now all my Bookmarks and Passwords are gone

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 1 view
  • Nuɖoɖo mlɔetɔ cor-el

more options

So I reformatted my computer today, but the process allowed me to keep all my personal files. I had made a backup in my appdata for all my passwords and bookmarks like Firefox allows when you're in Manage Passwords or Manage Bookmarks. After the formatting, I sign into my Firefox account, and it Syncs almost immediately. When I go into my appdata, the profile has been overwritten by the new sync, meaning all my passwords and bookmarks are now no longer available. Is there legitimately anything I can do??

So I reformatted my computer today, but the process allowed me to keep all my personal files. I had made a backup in my appdata for all my passwords and bookmarks like Firefox allows when you're in Manage Passwords or Manage Bookmarks. After the formatting, I sign into my Firefox account, and it Syncs almost immediately. When I go into my appdata, the profile has been overwritten by the new sync, meaning all my passwords and bookmarks are now no longer available. Is there legitimately anything I can do??

All Replies (1)

more options

You can check if you have a C:\Windows.old folder with your Firefox profile data. You can check if you have an "Old Firefox Data" folder on the desktop in case the Refresh feature in Firefox has been used and a new profile has been created.