The document provides 5 tips for operating Firebase:
1. Use the Firebase Local Emulator Suite for development. It allows testing services like Cloud Firestore and Cloud Functions locally.
2. Check creation, update, and read times for Cloud Firestore, as this information is recorded and can help with troubleshooting.
3. Use custom claims with Authentication, as this allows adding security rules and sharing user information across services.
4. Configure Cloud Logging for Hosting, as the default is no request logging, making it hard to see access patterns and errors.
5. View Cloud Functions logs in Cloud Logging, as it uniquely identifies executions, making logs easier to analyze than the Firebase console.