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!

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

Is it possible to find the "Sync" key in my old Firefox files ?

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

I have "Backup" files from my old laptop. And there are probably 1000 or more Mozilla and Firefox files in the backup .... is there a way to merge that old information/files with my new Firefox account ?

I have "Backup" files from my old laptop. And there are probably 1000 or more Mozilla and Firefox files in the backup .... is there a way to merge that old information/files with my new Firefox account ?

All Replies (3)

more options

Do you have a folder that contains places.sqlite and a bookmarkbackups folder? If so, that should be helpful in reconstructing your settings. This article has tips on that: Recover important data from an old profile.

Regarding the Sync key specifically, I don't know where that is stored, but perhaps you won't need it?

more options

The Sync key is stored in the Firefox Passwords - two files (unless you were using the Master Password feature) which work in conjunction with each other.

signons.sqlite and key3.db

more options

You can find the sync account password and the sync (recovery) key in the password manager on computers where a sync account has been set up.

Look for:

  • chrome://weave (Mozilla Services Password)
  • chrome://weave (Mozilla Services Encryption Passphrase)