Back in 2022, I found a flaw in Firebase where someone could easily creating short links on a firebase connected domain. The flaw affected some of Google's own apps as well. Here is the story about that. Do check if you are affected.

Read the full blog here

is there a place where i can read what the various functions do in firebase like getDocs , collections and doc etc.

I think Firebase is better than Supabase because it's easy to experiment.

On Supabase, AI has to generate you code to SQL, but that could then mess up all the other tables.

Is there a way where it won't do that?

I am at an intermediate level in Flutter and I’m developing a social media application. I need to use a backend for CRUD operations, authentication, and storing user data. I may also need to create a website for my application, so I require hosting as well.

During my learning with Flutter, I was using Firebase, but after calculating the costs I would incur, I’ve decided against using Firebase for my application, especially since the profits are likely to be low in the Middle East.

Now, I am looking for a way to:

• Perform CRUD operations

• Media storage

• Implement authentication (email & password, Google, Apple)

• Enable messaging within my app

• Implement phone number verification

I love Firebase Studio tbh because of how quickly I can build professional looking and working apps If we start the new app directly in Firebase Studio. But, after making 3 apps I realized while prompting it sometimes do repetative mistakes and it does changes which I didn’t ask it to do so I felt the need to mention in prompts repeatedly e.g. ‘don’t make changes in useEffect, do only what I am asking you to do’. To overcome this, I built a browser extension which appends the repetative prompt I save in the extension popup always so it doesn’t do these errors. If you are on the same page, do give it a try.

Been using the firebase AI for close to 50 days now. In the beginning it worked like a charm, accurate code changes and output, also fast. Now it writes a 1000 word essay on whats changes its going to do and then fails or hangs making code changes, goes in an infinite loop. They probably want you to subscribe to the pro version. Very disappointing from Google, instead of progressing they are regressing.

I have this code for signing up a user. I want to set the name first before redirecting, however my code automatically redirects before (as soon as I get the user) meaning when I try to grab the user’s display name on the homepage it comes back null the first time. Can I do the create user and update profile steps in one?

I have tried and tried, but I think firebase and Next JS when it comes to authentication doesn't workout. The main problem is synchronization between the client and server, and also how to get the user details on the server.

They are libraries that try to solve this problem but why do I need another library in order to use another library, okay why? I tried to follow the official Firebase tutorial with service workers which just made my site crash without any error whatsoever 😳.

But hey am just a newbie at this what are your thoughts?

I'm really enjoying creating with Firebase Studio, having tried Bolt, Replit, etc. it's a little different and maybe still needs some additional features but it's still powerful to get started on a project.

My frustration with it lies in the fact that it works really well throughout the morning (based in Ireland) and as soon as it gets to about midday when I'm guessing most of the US is coming online it grinds to a halt making any progress impossible until later in the evening.

Has anyone else had or seeing this also or am I just creating an application that's too complex? :)

Hi everyone! I’m thinking about moving a simple internal app—currently built in Power Apps—for my e‑commerce business over to Firebase Studio. The app just manage orders as they go through our production stages.

I’ve been playing around with Firebase Studio and really like the results so far, but the pricing information feels pretty confusing. Can anyone give me a rough idea of what this setup would cost to run?

Usage profile

• Inserts: ~30–40 new orders per day

• Active orders in workflow: ~600 at any given time

• Archived orders: everything else that’s already been shipped

• Users: max 10 concurrent

• File attachments per order: one small .dwg file + one cover image

• Extra feature: generate/print a “Production Order” PDF

• Must‑have: detailed audit log of edits and stage transitions

If anyone has a similar use case—or just knows the pricing quirks—what kind of monthly bill should I expect? Tips for using the Firebase pricing calculator are also welcome. Thanks in advance!

I am using react and I want to have an alternative to firebase hosting, which I really like because it’s free, and the real time db which is also very good. I’ve been using firebase for a long time and I wanted to know if there was a better alternative?

I am trying to make my website retrieve and download already existing images from my Firebase storage bucket, but i am receiving CORS policy errors.

i vaguely understand CORS. what I have read is that CORS is a web browser feature that prevents unauthorized requests to external URLs/sites.

im still a bit confused any explanation onto what CORS is and how to whitelist my application to make my storage bucket grant access.

Built a study partner matching app called LionLink for Columbia University students. The core trust mechanic was simple — only verified university students can sign up. No u/gmail.com, no exceptions.

Here's the Firebase auth check that made it work:

const isValidUniversityEmail = (email: string) => {

return email.endsWith('@columbia.edu');

};

if (!isValidUniversityEmail(email)) {

throw new Error('Please use your Columbia University email to sign up.');

}
Simple but effective. Every user is a verified member of the same academic community before they ever see another student's profile.

The rest of the stack: React 18, TypeScript, Vite, Tailwind CSS, and Firestore for the data layer.

Happy to answer questions about the auth flow, Firestore data modeling, or the matching logic.

I finally built my dream SaaS project, used a few AI tools here and there, but I’m an experienced dev, so I knew exactly how to wire things up making this soo cool and the reviews and functionalities are working without fail. The app’s packed with features, has multiple Firebase Cloud Functions handling some pretty complex business logic, and even connects with Buy Me a Coffee for managing subscriptions.

Now that everything’s live, I’m starting to think… did I go overboard? 😅 I’m wondering if Firebase is gonna surprise me with a crazy bill before I even make a profit.

Anyone with solid Firebase experience, how do you manage or predict your costs when your app starts getting real users?

I’m exploring Firebase Studio and wondering if it’s possible to build an entire full-stack web app with it — frontend, backend, and all.

Is it meant just for quick prototyping, or can it handle production-ready apps too?

I swear this tool makes such wild decisions sometimes. I literally asked it to add a parallax effect and it deleted the package.json instead.

Hey Firebase community, I have been trying to access my firebase studio project constantly and it is just being very stubborn as it's stuck at the setting up workspace screen for hours or it's just a mostly blank screen with a shining firebase studio logo in the middle(images attached below). Btw here's my device MacBook Pro 2023, M3 pro chip, 18gb ram, macOS sequoia 15.5 specs. Now, here what I've tried:
Restarting workspace, forking workspace, trying to access on different account and device by sharing project, restarting laptop, and clearing cache on browser. After so many failed devastating attempts I still am unable to start my project. FYI I have seen the ongoing firebase status issues, but my project is not an android studio workspace, it is just a web platform. Don't know why firebase is taking so long to fix it, though.

Can Google make a one-click process to connect a web app built with Firebase Studio to a Firebase database?

Right now, the process is as clear as mud and overly complicated. It shouldn’t be this hard. This should be simple enough that even a child could do it.

So far, I’ve spent an hour trying to figure this out, plus another hour talking to Gemini and I still haven’t had any luck.

My project requires me to build a simulated ATM with 2FA. So what I want is a GUI of an ATM which will allow user to enter their details and the existence details will be verified on the firebase and if the user is found it should send a message to the user. Now the user needs to send biometric (fingerprint) verification to allow the transaction to take place. How do I accomplish all of this?

I'm working on an online multiplayer game in JavaScript, and am using firebase for some online functionality. I want to have online multiplayer, where players can join servers and interact with each other and the world. However, I'm worried about how firebase will handle that. If I had tens or hundreds of players all having data updated multiple times per second, how much will that lag firebase? If it does cause lag, is there a way to upgrade my plan to mitigate that?