diff --git a/auth-next/emulator-suite.js b/auth-next/emulator-suite.js
index 66507de3..13b1ba95 100644
--- a/auth-next/emulator-suite.js
+++ b/auth-next/emulator-suite.js
@@ -6,7 +6,7 @@ function emulatorConnect() {
   const { getAuth, connectAuthEmulator } = require("firebase/auth");
 
   const auth = getAuth();
-  connectAuthEmulator(auth, "http://localhost:9099");
+  connectAuthEmulator(auth, "http://127.0.0.1:9099");
   // [END auth_emulator_connect]
 }
 
diff --git a/auth/emulator-suite.js b/auth/emulator-suite.js
index b14a72db..b0f815e2 100644
--- a/auth/emulator-suite.js
+++ b/auth/emulator-suite.js
@@ -4,7 +4,7 @@ import "firebase/auth";
 function emulatorConnect() {
   // [START auth_emulator_connect]
   const auth = firebase.auth();
-  auth.useEmulator("http://localhost:9099");
+  auth.useEmulator("http://127.0.0.1:9099");
   // [END auth_emulator_connect]
 }
 
diff --git a/database-next/emulator-suite.js b/database-next/emulator-suite.js
index ab86bf9b..f94d3c89 100644
--- a/database-next/emulator-suite.js
+++ b/database-next/emulator-suite.js
@@ -8,7 +8,7 @@ function onDocumentReady() {
   const db = getDatabase();
   if (location.hostname === "localhost") {
     // Point to the RTDB emulator running on localhost.
-    connectDatabaseEmulator(db, "localhost", 9000);
+    connectDatabaseEmulator(db, "127.0.0.1", 9000);
   } 
   // [END rtdb_emulator_connect]
 }
diff --git a/database/emulator-suite.js b/database/emulator-suite.js
index 8fe739e4..8da23e25 100644
--- a/database/emulator-suite.js
+++ b/database/emulator-suite.js
@@ -10,7 +10,7 @@ function onDocumentReady() {
   var db = firebase.database();
   if (location.hostname === "localhost") {
     // Point to the RTDB emulator running on localhost.
-    db.useEmulator("localhost", 9000);
+    db.useEmulator("127.0.0.1", 9000);
   } 
   // [END rtdb_emulator_connect]
 }
diff --git a/firestore-next/emulator-suite.js b/firestore-next/emulator-suite.js
index 30ad24eb..edc900c1 100644
--- a/firestore-next/emulator-suite.js
+++ b/firestore-next/emulator-suite.js
@@ -7,6 +7,6 @@ function onDocumentReady() {
 
   // firebaseApps previously initialized using initializeApp()
   const db = getFirestore();
-  connectFirestoreEmulator(db, 'localhost', 8080);
+  connectFirestoreEmulator(db, '127.0.0.1', 8080);
   // [END fs_emulator_connect]
 }
diff --git a/firestore/emulator-suite.js b/firestore/emulator-suite.js
index 714d38e7..03aef1e9 100644
--- a/firestore/emulator-suite.js
+++ b/firestore/emulator-suite.js
@@ -6,7 +6,7 @@ function onDocumentReady() {
   // Firebase previously initialized using firebase.initializeApp().
   var db = firebase.firestore();
   if (location.hostname === "localhost") {
-    db.useEmulator("localhost", 8080);
+    db.useEmulator("127.0.0.1", 8080);
   }
   // [END fs_emulator_connect]
 }
diff --git a/functions-next/emulator-suite.js b/functions-next/emulator-suite.js
index 7a750fc4..db7fd49d 100644
--- a/functions-next/emulator-suite.js
+++ b/functions-next/emulator-suite.js
@@ -15,7 +15,7 @@ export function emulatorSettings() {
   const { getFunctions, connectFunctionsEmulator } = require("firebase/functions");
 
   const functions = getFunctions(getApp());
-  connectFunctionsEmulator(functions, "localhost", 5001);
+  connectFunctionsEmulator(functions, "127.0.0.1", 5001);
   // [END fb_functions_emulator_connect]
 }
 
diff --git a/functions/emulator-suite.js b/functions/emulator-suite.js
index a9cdc7d7..e0413370 100644
--- a/functions/emulator-suite.js
+++ b/functions/emulator-suite.js
@@ -3,6 +3,6 @@ import "firebase/functions";
 
 function emulatorSettings() {
   // [START fb_functions_emulator_connect]
-  firebase.functions().useEmulator("localhost", 5001);
+  firebase.functions().useEmulator("127.0.0.1", 5001);
   // [END fb_functions_emulator_connect]
 }
diff --git a/snippets/auth-next/emulator-suite/auth_emulator_connect.js b/snippets/auth-next/emulator-suite/auth_emulator_connect.js
index dd0b2e37..525a92b8 100644
--- a/snippets/auth-next/emulator-suite/auth_emulator_connect.js
+++ b/snippets/auth-next/emulator-suite/auth_emulator_connect.js
@@ -8,5 +8,5 @@
 import { getAuth, connectAuthEmulator } from "firebase/auth";
 
 const auth = getAuth();
-connectAuthEmulator(auth, "http://localhost:9099");
+connectAuthEmulator(auth, "http://127.0.0.1:9099");
 // [END auth_emulator_connect_modular]
\ No newline at end of file
diff --git a/snippets/database-next/emulator-suite/rtdb_emulator_connect.js b/snippets/database-next/emulator-suite/rtdb_emulator_connect.js
index 4cc268e7..0bd145f6 100644
--- a/snippets/database-next/emulator-suite/rtdb_emulator_connect.js
+++ b/snippets/database-next/emulator-suite/rtdb_emulator_connect.js
@@ -10,6 +10,6 @@ import { getDatabase, connectDatabaseEmulator } from "firebase/database";
 const db = getDatabase();
 if (location.hostname === "localhost") {
   // Point to the RTDB emulator running on localhost.
-  connectDatabaseEmulator(db, "localhost", 9000);
+  connectDatabaseEmulator(db, "127.0.0.1", 9000);
 } 
 // [END rtdb_emulator_connect_modular]
\ No newline at end of file
diff --git a/snippets/firestore-next/emulator-suite/fs_emulator_connect.js b/snippets/firestore-next/emulator-suite/fs_emulator_connect.js
index 7e31fcfd..d70fbb68 100644
--- a/snippets/firestore-next/emulator-suite/fs_emulator_connect.js
+++ b/snippets/firestore-next/emulator-suite/fs_emulator_connect.js
@@ -9,5 +9,5 @@ import { getFirestore, connectFirestoreEmulator } from "firebase/firestore";
 
 // firebaseApps previously initialized using initializeApp()
 const db = getFirestore();
-connectFirestoreEmulator(db, 'localhost', 8080);
+connectFirestoreEmulator(db, '127.0.0.1', 8080);
 // [END fs_emulator_connect_modular]
\ No newline at end of file
diff --git a/snippets/functions-next/emulator-suite/fb_functions_emulator_connect.js b/snippets/functions-next/emulator-suite/fb_functions_emulator_connect.js
index 9b186fc2..835a2c60 100644
--- a/snippets/functions-next/emulator-suite/fb_functions_emulator_connect.js
+++ b/snippets/functions-next/emulator-suite/fb_functions_emulator_connect.js
@@ -9,5 +9,5 @@ import { getApp } from "firebase/app";
 import { getFunctions, connectFunctionsEmulator } from "firebase/functions";
 
 const functions = getFunctions(getApp());
-connectFunctionsEmulator(functions, "localhost", 5001);
+connectFunctionsEmulator(functions, "127.0.0.1", 5001);
 // [END fb_functions_emulator_connect_modular]
\ No newline at end of file
diff --git a/snippets/storage-next/emulator-suite/storage_emulator_connect.js b/snippets/storage-next/emulator-suite/storage_emulator_connect.js
index 5cdc1589..4b247d17 100644
--- a/snippets/storage-next/emulator-suite/storage_emulator_connect.js
+++ b/snippets/storage-next/emulator-suite/storage_emulator_connect.js
@@ -10,6 +10,6 @@ import { getStorage, connectStorageEmulator } from "firebase/storage";
 const storage = getStorage();
 if (location.hostname === "localhost") {
   // Point to the Storage emulator running on localhost.
-  connectStorageEmulator(storage, "localhost", 9199);
+  connectStorageEmulator(storage, "127.0.0.1", 9199);
 } 
 // [END storage_emulator_connect_modular]
\ No newline at end of file
diff --git a/storage-next/emulator-suite.js b/storage-next/emulator-suite.js
index b3038033..78891a4f 100644
--- a/storage-next/emulator-suite.js
+++ b/storage-next/emulator-suite.js
@@ -8,7 +8,7 @@ function onDocumentReady() {
   const storage = getStorage();
   if (location.hostname === "localhost") {
     // Point to the Storage emulator running on localhost.
-    connectStorageEmulator(storage, "localhost", 9199);
+    connectStorageEmulator(storage, "127.0.0.1", 9199);
   } 
   // [END storage_emulator_connect]
 }
diff --git a/storage/emulator-suite.js b/storage/emulator-suite.js
index 7f93e660..be1f2dd4 100644
--- a/storage/emulator-suite.js
+++ b/storage/emulator-suite.js
@@ -9,7 +9,7 @@ function onDocumentReady() {
   var storage = firebase.storage();
   if (location.hostname === "localhost") {
     // Point to the Storage emulator running on localhost.
-    storage.useEmulator("localhost", 9199);
+    storage.useEmulator("127.0.0.1", 9199);
   } 
   // [END storage_emulator_connect]
 }