The "Add to Google Calendar" extension enhances Chrome's functionality by adding a context menu option that allows users to create events directly in Google Calendar. This useful feature simplifies the process of adding events by enabling users to select text within Chrome, right-click, and quickly access the Google Calendar event dialogue.

With this extension, users can seamlessly integrate event creation into their browsing experience, saving time and streamlining the process of managing their schedules. The convenience of being able to add events to Google Calendar with just a few clicks enhances productivity for those who rely on Google Calendar for organizing their daily activities.