This is a browser extension (only Chrome for now), that helps us spot possible phishing attacks.
When users visit a phishing site, usually thats the first time they visit it. This extension warns users when they directly land on a web page that asks for their password.
It also allows one to whitelist websites. When users visit one of these sites they are displayed a green tick to let them know that it is one of the trusted websites.
These 2 features will help users spot possible phishing attacks.