Given Mozilla's current direction in terms of looking for more revenue streams, it might be quite well timed - if it can be commercialized successfully on the B2B end, that is.
https://www.translatetheweb.com/?from=&to=en&a=https://t3n.d...
https://www.translatetheweb.com/?from=&to=en&a=https://t3n.d...
Though just realised, they're not that upfront about giving HIBP credit - If I were Troy this would peeve me a bit.
I think they discussed HIBP in the launch announcement: https://blog.mozilla.org/security/2018/11/14/when-does-firef...
It's also in the FAQ: https://support.mozilla.org/en-US/kb/firefox-monitor-faq
Was a little peeved at what seemed like a copy, but I have now realised it is just building on top of Troy's work [1] which is even better because of Firefox's larger reach.
They don't have to have a blinking marque text at the top attributing it to Have I Been Pwned. But they could have mentioned it on the front page somewhere that HIBP is one of their main sources. I trust HIBP, therefore, more value to Firefox Monitor had I known that link.
[1] https://www.troyhunt.com/were-baking-have-i-been-pwned-into-...
If you trust HiBP, you don't really need Firefox Monitor. It was created specifically to reach people that HiBP could not reach.