Firefox Monitor warns you if your online accounts were involved in a known data breach. See if your information was exposed in a data breach, learn how to take action to better protect your online accounts, and get alerted if your information appears in a new breach. You can enroll multiple email addresses for breach alerts from a single Firefox Account.
- See also Firefox Password Manager - Alerts for breached websites about alerts in Firefox for saved logins and passwords exposed in known data breaches.
Table of Contents
See if you've been part of a known breach
To see if your online accounts have been exposed in a known data breach:
- Click on the shield next to the address bar
and select .
- Scroll down to Look out for data breaches and click Sign Up for Breach Alerts.
- When the Firefox Monitor report page opens, click to sign in to your Firefox Account.
- Click the tab on the new page.
From here, you can browse or search for specific breaches.
To see if your online accounts have been exposed in a known data breach:
Click the Firefox Account icon in the toolbar.
- Click to open the Firefox Monitor report page.
- Click to sign in to your Firefox Account.
- Click the tab on the new page.
From here, you can browse or search for specific breaches.
Monitor your email for future breaches
Firefox Monitor can send you breach notifications so you can take actions to protect your account. To sign up for notifications:
Click the Firefox Account icon in the toolbar.
- Click to open the Firefox Monitor report page and sign in if you haven't already.
- Click in the Email Addresses section.
- Add a checkmark next to your desired setting.
- Send breach alerts to affected email address to send emails to the affected address.
- Send breach alerts to [email address] to send all alerts to a designated address even if it's not linked to your Firefox Account.
- Click on the shield next to the address bar and select .
- Scroll down to Look out for data breaches and click Sign Up for Breach Alerts, this will open the Firefox Monitor report page.
- Click to sign in to your Firefox Account if you haven't already.
- Click in the Email Addresses section.
- Add a checkmark next to your desired setting.
- Send breach alerts to affected email address to send emails to the affected address.
- Send breach alerts to [email address] to send all alerts to a designated address even if it's not linked to your Firefox Account.
Receive desktop browser alerts
If you use the desktop version of Firefox and visit websites in our list of breaches, you’ll receive an alert in your browser. This directs you to Firefox Monitor where you can see if your account is at risk. You will not see these alerts more than once per website.
When you browse a site with a known data breach, you’ll receive a message similar to this:
You can do any of the following from this prompt:
- Select to see if your information was exposed when this website was breached.
- Select to ignore the alert.
- Select the drop-down arrow next to Dismiss and then select to dismiss all Firefox Monitor alerts on all sites.
Frequently asked questions
Have questions? Firefox Monitor - Frequently asked questions covers many popular questions. If your question isn’t covered, go to Get Community Support to ask the community for help.
