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Firefox warns if the website you're visiting suffered a data breach

The Firefox Monitor account protection service is available in 26 languages.

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A Mozilla Firefox sticker
Stephen Shankland/CNET

You've probably got too many notifications pinging you on your computer screen, but perhaps you'd be OK with this one: data breach warnings for the websites you visit.

The Firefox Monitor service, which arrived in September and is based on the Have I Been Pwned service from security expert Troy Hunt, warns you if your account was among the hundreds of millions affected by data breaches at sites like Yahoo, LinkedIn and Equifax

A new feature with the service now pops up a notification if the website you're visiting was affected by a data breach reported in the previous 12 months, so you can know whether to check your account.

"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," Nick Nguyen, Mozilla's vice president of Firefox, said Wednesday in a blog post announcing the development.

The service shows that, although data breaches are distressingly common as attackers become more sophisticated, the tools we have to respond to them are improving.

Mozilla made Firefox Monitor available in 26 languages.

"We couldn't have accomplished this feat without our awesome Mozilla community of volunteers who worked together to make this happen," Nguyen said.