notifies the user when his mailbox or password is threatened. The task of verifying data for reliability was assigned by the name I Been Pvned (HIBP), Troy Hunt's security researcher who collected leak information.
The database stores data on all passwords and accounts on large services compromised as a result of cyber attacks. However, the Firefok Monitor tool was not very useful: it did not offer anything new, which can not be done on the HIBP website or by using third-party extensions.
In the coming weeks, Firefok Monitor features will be expanded, according to Mozilla's blog. If a user visits a site endangered in the last 12 months, he will be asked to check if his data has not affected the leak. However, once the user receives a notification from Firefok Monitor at least once, the browser will notify him of the hacked sites listed in the HIBP database in the last 2 months.
"We do not want to disturb users or create noise by showing warnings for sites that have been taking measures for protecting their users for a long time," Mozilla explained. "This noise can reduce the value and usefulness of an important security feature."