The independent Firefox Monitor service will now gradually integrates natively into Firefox, according to the Mozilla team.
The service, which lists every time email addresses have turned up data breaches, can also directly ping users if an email address is found in such a cull.
This is to provide warnings when a site or service being visited using the browser has been targeted for a breach.
The service will be integrated into Firefox 70 (the current version is number 68), and is actually an implementation of the Have I Been Pwned database, with which Mozilla is now collaborating. This integration with its web browser will soon be a reality, as Firefox 70 should be released in the Fall of 2019.