Firebase security, configuration, and development services
Firebase provides authentication, real-time database, Firestore, and hosting in one package. AI tools love it for quick setups, but security rules are almost always missing or misconfigured.
Common Firebase issues we find
Real problems from Firebase codebases we've reviewed.
Open security rules
Firestore and Realtime Database rules set to allow all reads and writes, making your entire database public.
Client-side admin SDK usage
Firebase Admin SDK credentials or service account keys exposed in client-side code.
Inefficient Firestore queries
Reading entire collections when only a few documents are needed, or missing composite indexes causing query failures.
No offline data handling
Apps crash or show stale data when connectivity drops because offline persistence isn't configured properly.
Runaway Cloud Functions
Cloud Functions that trigger other functions in infinite loops, or functions that don't handle errors and retry endlessly.
Missing auth state handling
No handling for auth token expiration, user deletion, or session invalidation.
Uncontrolled Firestore costs
Read-heavy patterns without caching cause unexpectedly high Firestore bills as usage grows.
No staging environment
Development and production share the same Firebase project, making testing risky.
Firebase production checklist
Key checks before deploying your Firebase app.
Firestore security rules restrict access by authenticated user
No Admin SDK or service account keys in client code
Composite indexes created for complex queries
Cloud Functions have error handling and timeout limits
Separate Firebase projects for dev and production
Offline persistence configured for mobile/PWA
Auth state changes handled globally
Firestore reads minimized with proper caching
Storage rules restrict file uploads by type and size
Firebase App Check enabled for API protection
Not sure if your app passes? Our code audit checks all of these and more.
Our Firebase services
Security Review
Manual security analysis of your application covering API endpoints, authentication, data access, and infrastructure configuration.
Deploy & Ship
From local development to production deployment.
Performance
Identify and fix performance bottlenecks, from slow page loads and unoptimized queries to missing caching.
Infrastructure
Databases, APIs, auth systems, email, file storage, and the backend services your application needs.
AI tools that generate Firebase code
Our services
Get a professional review of your Firebase project.
Security Review
Security Review
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteSecurity Review
Full Pentest
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Fix Bugs
Bug Fixing
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteFix Bugs
Ongoing Support
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Refactor Code
Refactoring
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteRefactor Code
Full Rewrite
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
All projects start with a free consultation. We scope your project and provide a fixed quote before any work begins.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear quote
We respond within 24 hours with scope, timeline, and a fixed price.
Launch with confidence
We get to work, deliver results, and stick around to help.
Frequently asked questions
Are my Firebase security rules safe?
If an AI tool set them up, likely not. The default rules for development allow all access. We write production-grade rules that protect your data.
How do I reduce my Firebase costs?
We optimize Firestore read patterns, implement caching, batch operations, and restructure data to minimize document reads. This often cuts costs by 50-80%.
Can you migrate from Firebase to Supabase?
Yes. We handle auth migration, data migration, and code changes. The process typically takes 1-2 weeks depending on complexity.
Should I use Firestore or Realtime Database?
Firestore for most apps - it's more scalable and has better querying. Realtime Database for apps that need very low latency real-time sync (like chat).
Related resources
Need help with your Firebase project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.