Develop a comprehensive Flutter app with Firebase integration for social login functionality, including sign-in options with Facebook, Google, and phone number OTP verification. Master the setup process for Flutter in both Android Studio and Visual Studio Code on Windows, ensuring compatibility with Flutter 2.8 and Null Safety. Learn to implement email and password authentication, connect your Flutter app to Firebase, and create a complete login and registration system. Explore advanced features such as forget password functionality, email address verification, and password change capabilities. Gain practical knowledge on obtaining SHA-1, SHA-256, and Key Hash values in Android Studio. By the end of this extensive tutorial, you'll have created a fully functional social login app using Flutter and Firebase, equipped with multiple authentication methods and essential security features.