Progressive Web Applications (PWAs) are becoming increasingly popular due to their native-like features and compatibility with web browsers, provided they are hosted on secure URLs. This tutorial guides developers on setting up an automated deployment pipeline for PWAs using Firebase and CircleCI, ensuring the deployment to a secure URL. It begins with creating a demo PWA project with basic HTML, CSS, and JavaScript files, including a service worker for offline capabilities. The tutorial covers the creation of a manifest.json file for app metadata and instructions for deploying the application on Firebase, including setting up necessary tools and accounts. The tutorial further details building a continuous deployment pipeline using CircleCI, emphasizing the importance of secure service account credentials for Firebase deployment. Finally, it provides steps to connect the project to a GitHub repository and configure environment variables on CircleCI to automate the deployment process, enabling developers to host PWAs securely and efficiently.