Mozilla is working on a new feature for Firefox, dubbed Breach Alerts, which will warn users when they visit a website, whether it was hacked in the past or not.
Original post: https://fossbytes.com/firefox-breach-alerts-warn-hacked-website/
This add-ons can be find on GitHub open source: https://github.com/nhnt11/BreachAlerts
This post created by @nabilharabi