During the second event, participants will be introduced to WebExtensions APIs that can perform basic functionalities.  After reviewing the functionalities of these APIs, you will help the group put them in action to create an extension for Firefox. You can make a copy of the presentation <actionLink>APIs in Action, Part One</actionLink>, and share it with your group.
接下来，您将向参与者介绍可以执行基本功能的 WebExtensions API。在回顾了这些 API 的功能之后，您将帮助小组成员付诸实践，为 Firefox 构建一个扩展。您可以拷贝这份演示文稿 <actionLink>in Action, Part One</actionLink>，与您的小组共享。