Explore the evolution of Chrome Extensions with Manifest V3 in this JSConf US 2019 talk by Simeon Vincent. Dive into the history of browser extensions, starting from Netscape Navigator 2.0 to Firefox 1.0's Add-ons. Understand the limitations of Manifest V2 and discover the goals behind Chrome's Manifest V3. Learn about key improvements in privacy, security, and performance, including runtime host permissions, service workers, and the handling of remotely hosted code. Gain insights into the Chrome team's vision for the future of browser extensions and how Manifest V3 aims to address current platform issues.