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description: Firebase A/B Testing, previously available only for mobile apps, now supports web applications, powered by Google Analytics and Firebase Remote Config. The...
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# B Testing is now available for the web

**[Firebase](https://daily.dev/sources/firebase-blog)** · 8 min read · 0 upvotes · 0 comments

## Summary

Firebase A/B Testing, previously available only for mobile apps, now supports web applications, powered by Google Analytics and Firebase Remote Config. The post walks through setting up experiments for content variations, user flows, and feature adoption, with two worked examples: testing blog post tone to optimize subscriptions, and testing onboarding flow variants in a React app using a custom useRemoteConfig hook. It covers defining variants, serving them to visitor segments, setting objectives tracked via Google Analytics, and analyzing results in the Firebase console or BigQuery. It also mentions trying the feature through the Antigravity IDE agent.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://firebase.blog/posts/2026/03/ab-testing-for-web>

## Questions this post answers

### Is Firebase A/B Testing available for web apps now, or only mobile?

Firebase A/B Testing is now available for web apps, not just mobile. It is powered by Google Analytics and Firebase Remote Config, letting developers run, analyze, and scale experiments on web content, onboarding flows, and features using the same Firebase console tooling previously limited to mobile apps.

_daily.dev helps web developers track new Firebase capabilities as they roll out for browser-based apps._

### How do I set up an A/B test on a React web app using Firebase Remote Config?

Define a Remote Config parameter such as onboarding_flow with a baseline value like 'standard' and a variant like 'new_design', then build a custom useRemoteConfig hook using useState and useEffect that calls fetchAndActivate and getValue to retrieve the parameter and conditionally render components, wrapped in React.lazy and Suspense for code splitting.

_developers wiring up experiments in React apps can find implementation patterns like this on daily.dev._

### How do I analyze which variant won in a Firebase A/B test for the web?

Check the A/B Testing report in the Firebase console, which draws on Google Analytics data to show which variant performed better against the defined objectives, such as subscriptions or retention. For deeper analysis, export data to BigQuery and query the Analytics event tables, since only events triggered by test participants carry experiment and variant metadata.

_daily.dev keeps experiment-driven web developers current on tooling for analyzing A/B test results._

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- [Inside Google’s System for Coordinated A/B Testing Across Its Global Service Fleet](https://daily.dev/posts/inside-google-s-system-for-coordinated-a-b-testing-across-its-global-service-fleet-dcjl4coz4) · InfoQ · 0 upvotes · 0 comments

---

Tags: [#react](https://daily.dev/tags/react), [#firebase](https://daily.dev/tags/firebase), [#ab-testing](https://daily.dev/tags/ab-testing), [#google-analytics](https://daily.dev/tags/google-analytics)

[View this post on daily.dev](https://daily.dev/posts/b-testing-is-now-available-for-the-web-aes9k8rz8)

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