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

How to relate master password in migrated profile

  • 2 replies
  • 1 has this problem
  • 22 views
  • Last reply by brunoais

more options

I migrated my firefox profile from windows to linux. When I first opened firefox, no prompt appears for the master password (when it is first needed). When I go to the preferences page, it shows that I don't have a master password set.

When I try to set a password equal to the one that is used for the in the logins.json passwords, it mentions "Unable to change master password". It doesn't matter the password I enter. I always answers the same "Unable to change master password"

I already tried making a different profile and then copying just the password db and json files. I was able to access my passwords just fine.

How can I get the passwords working with my firefox profile?

I migrated my firefox profile from windows to linux. When I first opened firefox, no prompt appears for the master password (when it is first needed). When I go to the preferences page, it shows that I don't have a master password set. When I try to set a password equal to the one that is used for the in the logins.json passwords, it mentions "Unable to change master password". It doesn't matter the password I enter. I always answers the same "Unable to change master password" I already tried making a different profile and then copying just the password db and json files. I was able to access my passwords just fine. How can I get the passwords working with my firefox profile?

Modified by brunoais

All Replies (2)

more options

You would need logins.json and key4.db in current releases. When you only have key3.db and logins.json then make sure that there is no key.db present.

Firefox uses two locations for the Firefox profile folder, so make sure go to the correct location. Location used for the main profile that keeps your personal data in "AppData\Roaming" (Root Directory on about:profiles).

  • C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\

Location used for the disk cache and other temporary files in "AppData\Local" (Local Directory on about:profiles).

  • C:\Users\<user>\AppData\Local\Mozilla\Firefox\Profiles\<profile>\
more options

I already have all of that done. As I mentioned, I have the whole profile and I had it working on a new profile. It is not working on a copied profile. A profile which I copied from windows.