I'm pretty sure it's a partnership with HaveIBeenPwned: https://www.troyhunt.com/were-baking-have-i-been-pwned-into-firefox-and-1password/ https://www.troyhunt.

I'm pretty sure it's a partnership with HaveIBeenPwned: https://www.troyhunt.com/were-baking-have-i-been-pwned-into-firefox-and-1password/ https://www.troyhunt.com/were-baking-have-i-been-pwned-into-... > We're Baking Have I Been Pwned into Firefox and 1Password > Over the coming weeks, Mozilla will begin trialling integration between HIBP and Firefox to make breach data searchable via a new tool called "Firefox Monitor".