Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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

What if someone steals my logins.json and key4.db files

  • 2 replies
  • 1 has this problem
  • 42 views
  • Last reply by Samoreen

more options

Hi,

Let's assume that someone gets a copy of these files and copy them to another installation of Firefox on another system. Will he be able to use my passwords ?

Thanks.

Hi, Let's assume that someone gets a copy of these files and copy them to another installation of Firefox on another system. Will he be able to use my passwords ? Thanks.

Chosen solution

They could yes. However, if someone has physical access to the files on your computer, your passwords are just one of many things they can potentially access. They could install a keylogger, malware, remote e-mail server to spam people, DDoS clients, etc.

This is why it's always important to encrypt your computer and use a strong account password when you first log on, in case someone gets physical access to your hard drive it will be useless. Then, it's important to carefully monitor what software you install onto your computer, and keep ALL software up to date to prevent any security holes that could allow remote access to your files.

Finally, you can use a master password to locally encrypt the files on your computer as a last line of defense. Use a Primary Password to protect stored logins and passwords

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

They could yes. However, if someone has physical access to the files on your computer, your passwords are just one of many things they can potentially access. They could install a keylogger, malware, remote e-mail server to spam people, DDoS clients, etc.

This is why it's always important to encrypt your computer and use a strong account password when you first log on, in case someone gets physical access to your hard drive it will be useless. Then, it's important to carefully monitor what software you install onto your computer, and keep ALL software up to date to prevent any security holes that could allow remote access to your files.

Finally, you can use a master password to locally encrypt the files on your computer as a last line of defense. Use a Primary Password to protect stored logins and passwords

more options

OK. Thanks. That's what I wanted to know.