Hey there! As someone who’s messed around with Unity + Firebase for WebGL builds a bunch, let’s break down how to solve this registration issue and get you set up with Auth and Storage.

First: Double-Check the Web App Registration Steps #

It’s easy to miss a small step when you’re starting out—let’s walk through the correct flow again:

• Head to your Firebase project console, then go to Project Settings (the gear icon next to "Project Overview").
• Scroll all the way down to the Your apps section, then click the Add app button (the one with the </> icon for Web).
• Give your app a simple name (like "My Unity WebGL Game")—skip the "Set up Firebase Hosting" checkbox for now (you can enable it later if you need to host the build).
• Click Register app—you should see your web app’s configuration details (apiKey, authDomain, etc.) pop up right away.

Common Issues That Block Registration (and Fixes) #

If the above steps still aren’t working, here are the most likely culprits:

• Account Age/Permissions: Since you’re 13, make sure your Google account (linked to Firebase) is set to the correct age. Sometimes child accounts have restricted access—if that’s the case, ask a parent to verify your account age or help you create a new Firebase project with their account.
• Console Cache Glitches: Firebase’s web console can act up with cached data. Try opening the console in an incognito/private browser window, or clear your browser’s cache and cookies before trying again.
• Project Access Levels: If you’re using a shared Firebase project, you might not have owner-level permissions to add new apps. Create a brand new Firebase project under your own account (or with parent help) to test—this avoids any permission-related blocks.

Quick Notes for Unity WebGL + Firebase Integration #

Once you’ve registered the web app, here’s what’s next to get Auth and Storage working:

• In Unity, install the Firebase Unity SDK via the Package Manager (search for Firebase Auth and Firebase Storage, make sure to pick versions compatible with WebGL).
• In Unity’s Firebase settings (Window > Firebase > Settings), input the web app’s configuration values (you can copy these from the Firebase console’s web app setup page).
• For WebGL builds, make sure to enable WebGL Templates in Player Settings > Publishing Settings—this helps the Firebase SDK load correctly in the browser.

Let me know if you run into any weird errors with any of this—I’ve been there, and we can troubleshoot further!

内容的提问来源于stack exchange，提问作者Nikthegreat