Firebase is an application development platform that offers a range of services including hosting, databases, file storage, analytics, and authentication. Firebase Hosting is a prominent feature that allows users to deploy various web projects, such as mobile app pages and APIs, on a content delivery network. It provides free SSL certificates and two subdomains per site, with the option to customize unique domains. Users can deploy multiple sites under a single project, sharing resources like databases and APIs, though it is not advised for different workflow environments to avoid resource conflicts. Firebase Cloud Functions, a serverless framework, supports deploying Angular Universal apps by enabling server-side rendering without additional configuration. The article guides on deploying Angular applications to Firebase, covering single and multiple app deployments, and the use of Cloud Functions. It also highlights the necessity of a Google account, Firebase CLI, and Angular CLI for deployment, and discusses rollback procedures in case of deployment issues.