Issues

• Firestore: Safari IndexedDB workaround (WebKit 226547) is skipped when Safari sends a desktop UA ("Request Desktop Website" / iPadOS default), causing getDoc to hang after navigation

  api: firestoreneeds-attentionstack:NextJS
  firebase/firebase-js-sdk#10469 · Filter by author tsukimigg-a11y opened on Oct 12, 2026

• Web A/B Testing (Remote Config): experiment user property reaches only one event per page, so goal events are never attributed

  api: remoteconfigneeds-attentionquestionstack:Nuxt
  firebase/firebase-js-sdk#10468 · Filter by author Grandmozer opened on Oct 11, 2026

• Firestore 12.19.0: TypeError reading 'isCorePipeline' of null in getTargetData, then INTERNAL ASSERTION FAILED (b815)

  api: firestoreneeds-attentionstack:React
  firebase/firebase-js-sdk#10466 · Filter by author remillc opened on Oct 9, 2026

• FIRESTORE (11.10.0) INTERNAL ASSERTION FAILED ca9/b815 still seen in production after #9267 was closed

  api: firestoreneeds-attentionstack:Angular
  firebase/firebase-js-sdk#10434 · Filter by author jacobmsmall opened on Oct 3, 2026

• Auth: signInWithRedirect fails with "missing initial state" in iOS WKWebView after upgrading 12.8.0 → 12.19.0

  api: authneeds-attentionquestionstack:Vue
  firebase/firebase-js-sdk#10428 · Filter by author jacobg opened on Oct 2, 2026

• Firestore: re2js is bundled into the main entry for Pipelines expressions, even when Pipelines is never used

  api: firestoreneeds-attentionquestionstack:Angular
  firebase/firebase-js-sdk#10424 · Filter by author zola-dev opened on Oct 1, 2026

• Firestore multi-tab: a new primary re-listens with a stale persisted resume token, so hidden tabs re-bill every query

  api: firestoreneeds-attentionquestion
  firebase/firebase-js-sdk#10410 · Filter by author mattmoskal opened on Sep 29, 2026
  

• Auth: popup sign-in's 8s pollUserCancellation grace rejects mid-credential-exchange, then onAuthEvent's resolve() trips debugAssert('Pending promise was never set')

  api: authneeds-attentionquestion
  firebase/firebase-js-sdk#10407 · Filter by author mattsears18 opened on Sep 28, 2026
  3

• Firestore: INTERNAL ASSERTION FAILED "Unexpected state (ID: c050)" after reload with a queued write when enableNetwork() is called while already online

  api: firestoreneeds-attention
  firebase/firebase-js-sdk#10405 · Filter by author Abnegante opened on Sep 26, 2026

• Firestore: getDoc() never settles while the client reports Online (OPEN cancels the offline backstop; a silently dead back channel never errors)

  api: firestoreneeds-attentionquestionstack:ReactNative
  firebase/firebase-js-sdk#10404 · Filter by author JellyDonutGang opened on Sep 26, 2026

• Firestore: persistent cache index makes startAfter(snapshot) skip documents with the same orderBy value

  api: firestoreneeds-attentionquestionstack:Angular
  firebase/firebase-js-sdk#10403 · Filter by author petrskalicka opened on Sep 23, 2026
  1

  

• @firebase/firestore pins @grpc/grpc-js to ~1.9.0, holding consumers on a flagged release

  api: firestoreneeds-attentionquestionstack:Angular
  firebase/firebase-js-sdk#10400 · Filter by author MOHRE-License opened on Sep 23, 2026
  

• [auth] _openIframe returns a promise gapi's Context.open() never adopts, so the 5 s ping timeout rejects an unowned promise (unhandled auth/network-request-failed on Safari)

  api: authneeds-attentionstack:React
  firebase/firebase-js-sdk#10383 · Filter by author Desolution317 opened on Sep 14, 2026

• [auth] IndexedDB persistence produces unhandled promise rejections when the browser deletes the database (floating promises in startPolling / _addListener)

  api: authneeds-attentionstack:React
  firebase/firebase-js-sdk#10382 · Filter by author Desolution317 opened on Sep 14, 2026

• Auth: signInWithCustomToken throws "Database is closing/hidden" during rapid UI changes (Not fixed by 12.18.0)

  api: authquestionRepro Neededstack:Angulartesting-sdk
  firebase/firebase-js-sdk#10333 · Filter by author aymenchabbouh opened on Aug 27, 2026
  3

• DataConnect: subscribe() silently drops the second observer when two QueryRefs pass equal variables in a different property order

  api: dataconnectneeds-attentionRepro Neededstack:NextJS
  firebase/firebase-js-sdk#10332 · Filter by author JoFont opened on Aug 26, 2026
  1

  

• Firestore: assertion ca9 (pendingResponses < 0) still reachable in 12.17.0 after #9842, and the watch stream keeps pumping into the failed AsyncQueue (b815 flood → tab crash)

  api: firestoreneeds-attentionquestionRepro Needed
  firebase/firebase-js-sdk#10310 · Filter by author islamokasha1-cloud opened on Aug 17, 2026
  

• Firestore client reports "client is offline" for one browser profile, persistently across reload and across client recreation, while plain HTTP to the same emulator endpoint succeeds in 5ms

  api: firestoreneeds-attentionquestion
  firebase/firebase-js-sdk#10307 · Filter by author RayTechOps opened on Aug 14, 2026
  4

  

• FirebaseServerApp: transiently failed authIdToken sign-in is cached and served to all requests until token rotation, with no recovery API

  api: authfeature requeststack:NextJS
  firebase/firebase-js-sdk#10213 · Filter by author willbattel opened on Jul 25, 2026
  1

• Messaging: getToken() fails with the error "Service worker not registered after 10000 ms", and waitForRegistrationActive does not account for cases where the observed worker becomes redundant.

  api: messagingneeds-attentionquestionRepro Needed
  firebase/firebase-js-sdk#10197 · Filter by author chan-mai opened on Jul 22, 2026

• Remote Config A/B Test Doesn't Receive Data for NextJS Web

  api: remoteconfigbuginternal-bug-filedneeds-attentionreproduciblestack:NextJS
  firebase/firebase-js-sdk#10189 · Filter by author 7emretelli opened on Jul 21, 2026
  6

• Auth: unhandled InvalidStateError 'transaction on IDBDatabase: connection is closing' from background persistence poller (Flutter Web, split from #2710)

  api: authneeds-attentionstack:FlutterWeb
  firebase/firebase-js-sdk#10149 · Filter by author Ortes opened on Jul 10, 2026

• Calling a firebase function after registering web client for push via fid unregisters fid as push target

  api: functionsapi: messagingneeds-attentionquestionRepro Needed
  firebase/firebase-js-sdk#10135 · Filter by author atsjo opened on Jul 7, 2026
  7

• FR: Firebase Auth provider-level OIDC claims request support

  api: authtype: feature request
  firebase/firebase-js-sdk#10131 · Filter by author 7hokerz opened on Jul 5, 2026
  4

• fetch wrapper adds custom headers causing CORS preflight failure on securetoken.googleapis.com

  api: authneeds-attentiontype: feature request
  firebase/firebase-js-sdk#10086 · Filter by author itzikd-dv opened on Jun 16, 2026
  1