Google’s Justin Schuh, director of Chrome engineering, recently released a blog post stating that Google Chrome intends to kill off third-party cookies by 2020.
This proposed change introduces friction for advertisers and marketers who continue to rely (for better or worse) on third-party cookie tracking to display relevant ads to users.
https://www.impactbnd.com/blog/googles-new-plan-for-a-cookie-free-chrome-may-be-huge-for-advertisers