1. Head over to the Firebase Console.
2. Click "Add Project" and just follow the steps to set up your new project.
3. Once you're done, click the gear icon next to "Project Overview" and pick "Project settings".
4. Jot down the project ID for later. Trust me, you'll need it.

1. In your Firebase project, find the Firestore Database section.
2. Click "Create Database".
3. Choose the mode you want (Starting in production mode is usually a good idea).
4. Pick your Firestore location and hit "Enable".

1. In your Firebase project, go to Project settings.
2. In the Your apps section, click the </> icon (Web).
3. Give your app a nickname.
4. Click "Register app", then copy the Firebase SDK snippet. This has your apiKey, authDomain, projectId, and more.

1. Go to the Firestore Database section.
2. Click the "Rules" tab.
3. Set your Firestore security rules based on what you need for read and write access.
4. Click "Publish".

1. Open your Adalo project.
2. Go to the Database section.
3. Click "Add Collection".
4. Choose "External Collection".
5. Enter the URLs for your Firestore endpoints (https://firestore.googleapis.com/v1/projects/YOUR_PROJECT_ID/databases/(default)/documents/COLLECTION_NAME) and set the necessary parameters.

1. In your Firebase project, go to the Authentication section.
2. Click "Get Started" and then "Add sign-in method".
3. Enable the authentication methods you prefer (like Email/Password).
4. Set up the authentication settings as needed.

1. In Adalo, go to your app's Settings.
2. Under the "Integrations" tab, select the Firebase services you enabled.
3. Paste the Firebase SDK snippet (from Step 3) into the right fields.
4. Save the settings.

1. Preview your Adalo app.
2. Make sure data shows up correctly from Firebase, and try out CRUD operations to see if everything works.
3. Check authentication workflows if you set them up.

By following these steps carefully, you can successfully integrate Firebase with your Adalo app.