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Firebase Outage History

Every past Firebase outage tracked by IsDown, with detection times, duration, and resolution details.

There were 261 Firebase outages since September 2021. The 60 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor January 6, 2026

January 2026: Firebase Hosting returning unexpected 431 errors on some POST requests to Firebase Functions rewrites

Detected Jan 6, 2026 12:34 PM EST · Resolved Jan 6, 2026 7:24 PM EST · Duration about 7 hours

Minor January 6, 2026

January 2026: Firebase Hosting and App Hosting returning unexpected 431 errors on some POST requests

Detected Jan 6, 2026 12:34 PM EST · Resolved Jan 6, 2026 1:22 PM EST · Duration about 1 hour

Minor December 17, 2025

December 2025: Webpush topic subscriptions may be getting throttled.

Detected Dec 17, 2025 6:58 PM EST · Resolved Dec 18, 2025 11:02 AM EST · Duration about 16 hours

Minor December 3, 2025

December 2025: Firebase App Hosting NextJS builds Failing

Detected Dec 3, 2025 8:37 PM EST · Resolved Dec 3, 2025 8:42 PM EST · Duration 5 minutes

Minor December 2, 2025

December 2025: Increased test waiting time at Firebase Test Lab

Detected Dec 2, 2025 7:42 PM EST · Resolved Dec 2, 2025 11:44 PM EST · Duration about 4 hours

Minor November 27, 2025

November 2025: Firebase Remote Config service disruption

Detected Nov 27, 2025 7:09 AM EST · Resolved Nov 27, 2025 8:41 AM EST · Duration about 2 hours

Minor November 3, 2025

November 2025: Realtime Database Cloud Functions triggers not firing

Detected Nov 3, 2025 1:13 PM EST · Resolved Nov 3, 2025 9:14 PM EST · Duration about 8 hours

Minor October 31, 2025

October 2025: Firebase Data Connect Control Plane service degradation in europe-west1

Detected Oct 31, 2025 5:12 PM EDT · Resolved Oct 31, 2025 8:52 PM EDT · Duration about 4 hours

Minor October 28, 2025

October 2025: Firebase Test Lab is experiencing higher error rate for physical device tests (Android and iOS). We are currently investigating the cause and have started mitigations.

Detected Oct 28, 2025 2:17 PM EDT · Resolved Oct 28, 2025 2:38 PM EDT · Duration 22 minutes

Minor October 15, 2025

October 2025: Firebase Studio users are experiencing publishing errors when using the "Publish" button. We've determined the root cause and will be deploying a fix ASAP. As a workaround, users report that they can publish by using the Firebase App Hosting CLI to deploy their backend. Please see https://firebase.google.com/docs/app-hosting/alt-deploy#deploy-source

Detected Oct 15, 2025 11:15 AM EDT · Resolved Oct 15, 2025 6:04 PM EDT · Duration about 7 hours