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Waterfox Password Manager — Alerts for breached websites

Waterfox can warn you if a website associated with one of your saved logins has been reported in a known data breach. These alerts help you take action quickly to protect your accounts.

How breach alerts work

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  • When you save or view a login in Waterfox’s Password Manager (about:logins), Waterfox checks the domain against known breach data.
  • If a match is found, Waterfox shows an alert next to the affected login and may display a notification.
  • Alerts do not expose your passwords. They indicate that the site has had a reported breach, so you should change your password for that site and anywhere else you reused it.

What to do if you see an alert

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  1. Change the password for the affected site.
    • Use a strong, unique password. Consider using a reputable password manager.
  2. If you reused the same password on other sites, change those passwords too.
  3. Update the saved login in Waterfox:
    • Open Menu > Passwords (or visit about:logins).
    • Select the site and edit the password so Waterfox has the latest one.

View and manage your logins

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  • Open Menu > Passwords to view saved logins.
  • Use the search box to find a site quickly.
  • Click the eye icon to reveal a password (you may be prompted by your OS to authenticate).
  • Remove obsolete entries using the Remove button.

Security and privacy

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  • Breach checks are designed to avoid exposing your saved passwords. The alert reflects reported breaches for the site, not a leak of your Waterfox data.
  • For general privacy and connection protections, see Enhanced Tracking Protection and Site Information panel.
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