Privacy and security

Firefox Password Manager - Alerts for breached websites

Firefox's password management will show you alerts about logins potentially exposed in data breaches and passwords that may be vulnerable.

Last updated: 1 week ago

Learn how Firefox warns you about website data breaches and helps protect your accounts and passwords.

Last updated: 7/6/26

Frequently-asked questions for Mozilla Monitor.

Last updated: 3 weeks ago

Learn what to do after Mozilla Monitor notifies you about a data breach, so that you can protect your accounts and limit any damage.

Last updated: 10/26/24

Sometimes a website you don’t recognize can show up in Monitor. Here are several reasons why this can happen, along with steps to protect yourself.

Last updated: 10/26/24

This article explains how you can resolve data breaches in online accounts by using Mozilla Monitor.

Last updated: 5/22/24

This article will show you how to add or exclude email addresses on Mozilla Monitor.

Last updated: 11/20/25