Cross-Browser Testing is the process of verifying that a website or web application functions correctly across different web browsers, such as Google Chrome, Mozilla Firefox, and Safari. This testing ensures that users have a consistent experience, regardless of the browser they choose to use. It helps identify any issues related to layout, functionality, or performance that may arise in specific browsers. The goal of Cross-Browser Testing is to ensure compatibility and usability for all users. By testing on various browsers and devices, developers can catch and fix bugs early, leading to a smoother user experience and increased satisfaction.