Selenium is a widely-used open-source framework for automating web browsers, allowing testers and developers to script and validate web application behavior across browsers like Chrome, Firefox, and Edge. It supports multiple languages ​​including Java, Python, and C#, and comprises key components such as WebDriver, IDE, and Grid for parallel testing. Selenium integrates seamlessly with tools like TestNG and Jenkins for CI/CD workflows. As automation testing demand grows, taking a Selenium Course in Chennai at FITA Academy equips professionals with practical skills, real-world project exposure, and strong career opportunities in QA automation.