Website breach notifications will now be available on Mozilla Firefox Browser

Mozilla has announced today that it is adding a new security feature to its Firefox Quantum web browser that will alert users when they visit a website that has recently reported a data breach.

“We’re bringing this functionality to Firefox users in recognition of the growing interest in these types of privacy- and security-centric features,” Mozilla said. “This new functionality will gradually roll out to Firefox users over the coming weeks.”

Mozilla is tying the site breach notification feature to an email account breach notification service it launched earlier this year, called Firefox Monitor, which it also said today is now available in an additional 26 languages.

While using the Firefox Quantum browser, when you land on a site that’s been breached, you’ll get a notification. You can click on the alert to visit Firefox Monitor and scan your email to see whether or not you were involved in that data breach. This alert will appear at most once per site and only for data breaches reported in the previous twelve months. Website owners can learn about our data breach disclosure policy here. If you do not wish to see these alerts on any site, you can simply choose to “never show Firefox Monitor alerts” by clicking the dropdown arrow on the notification.

As with Firefox Monitor, Mozilla is relying on a list of breached websites provided by its partner, Troy Hunt’s pioneering breach notification service, Have I Been Pwned.

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