diff --git a/.changeset/thick-spoons-check.md b/.changeset/thick-spoons-check.md
new file mode 100644
index 00000000000..dce3dcdd8ab
--- /dev/null
+++ b/.changeset/thick-spoons-check.md
@@ -0,0 +1,6 @@
+---
+"@firebase/firestore": patch
+"@firebase/webchannel-wrapper": major
+---
+
+Use closure-net as a dependency of webchannel-wrapper and Firestore.
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/firestore/externs.json b/packages/firestore/externs.json
index a1746227316..f7fbbabeb14 100644
--- a/packages/firestore/externs.json
+++ b/packages/firestore/externs.json
@@ -24,7 +24,8 @@
     "packages/component/dist/src/provider.d.ts",
     "packages/component/dist/src/component_container.d.ts",
     "packages/logger/dist/src/logger.d.ts",
-    "packages/webchannel-wrapper/src/index.d.ts",
+    "packages/webchannel-wrapper/dist/bloom-blob/bloom_blob_types.d.ts",
+    "packages/webchannel-wrapper/dist/webchannel-blob/webchannel_blob_types.d.ts",
     "packages/util/dist/src/crypt.d.ts",
     "packages/util/dist/src/defaults.d.ts",
     "packages/util/dist/src/emulator.d.ts",
diff --git a/packages/firestore/src/platform/browser/webchannel_connection.ts b/packages/firestore/src/platform/browser/webchannel_connection.ts
index 77ecef10e0b..aa790f0ac2b 100644
--- a/packages/firestore/src/platform/browser/webchannel_connection.ts
+++ b/packages/firestore/src/platform/browser/webchannel_connection.ts
@@ -27,9 +27,9 @@ import {
   EventTarget,
   StatEvent,
   Event,
-  Stat,
-  FetchXmlHttpFactory
-} from '@firebase/webchannel-wrapper';
+  FetchXmlHttpFactory,
+  Stat
+} from '@firebase/webchannel-wrapper/webchannel-blob';
 
 import { Token } from '../../api/credentials';
 import { ExperimentalLongPollingOptions } from '../../api/long_polling_options';
diff --git a/packages/firestore/src/remote/bloom_filter.ts b/packages/firestore/src/remote/bloom_filter.ts
index 4c0e4ef6b7e..afb8d731211 100644
--- a/packages/firestore/src/remote/bloom_filter.ts
+++ b/packages/firestore/src/remote/bloom_filter.ts
@@ -14,7 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import { Md5, Integer } from '@firebase/webchannel-wrapper';
+
+import { Md5, Integer } from '@firebase/webchannel-wrapper/bloom-blob';
 
 import { newTextEncoder } from '../platform/text_serializer';
 
diff --git a/packages/firestore/test/unit/core/webchannel_wrapper.test.ts b/packages/firestore/test/unit/core/webchannel_wrapper.test.ts
index 3f3272aea48..c5e597f4216 100644
--- a/packages/firestore/test/unit/core/webchannel_wrapper.test.ts
+++ b/packages/firestore/test/unit/core/webchannel_wrapper.test.ts
@@ -19,7 +19,7 @@
 // These tests are mostly to ensure that the exported classes correctly map to
 // underlying functionality from google-closure-library.
 
-import { Md5, Integer } from '@firebase/webchannel-wrapper';
+import { Md5, Integer } from '@firebase/webchannel-wrapper/bloom-blob';
 import { expect } from 'chai';
 
 import { newTextEncoder } from '../../../src/platform/text_serializer';
diff --git a/packages/webchannel-wrapper/bloom-blob/package.json b/packages/webchannel-wrapper/bloom-blob/package.json
new file mode 100644
index 00000000000..956333e7cf2
--- /dev/null
+++ b/packages/webchannel-wrapper/bloom-blob/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "@firebase/webchannel-wrapper/bloom-blob",
+  "description": "Bloom filter related code from the Closure library.",
+  "main": "../dist/bloom-blob/bloom_blob_es2018.js",
+  "browser": "../dist/bloom-blob/esm/bloom_blob_es2018.js",
+  "module": "../dist/bloom-blob/esm/bloom_blob_es2018.js",
+  "esm5": "../dist/bloom-blob/bloom_blob_es5.js",
+  "typings": "../dist/bloom-blob/bloom_blob_types.d.ts"
+}
diff --git a/packages/webchannel-wrapper/externs/module.js b/packages/webchannel-wrapper/empty.js
similarity index 71%
rename from packages/webchannel-wrapper/externs/module.js
rename to packages/webchannel-wrapper/empty.js
index 37e045fc23a..0a92763191f 100644
--- a/packages/webchannel-wrapper/externs/module.js
+++ b/packages/webchannel-wrapper/empty.js
@@ -1,6 +1,6 @@
 /**
  * @license
- * Copyright 2020 Google LLC
+ * Copyright 2024 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,5 +15,10 @@
  * limitations under the License.
  */
 
-/** @type {!Object} */
-const module = {};
+/**
+ * This package has no main entry point and only allows imports from its
+ * two subpaths. This file is provided for the top-level package.json
+ * "main" field to point to.
+ */
+
+export default {};
diff --git a/packages/webchannel-wrapper/externs/overrides.js b/packages/webchannel-wrapper/externs/overrides.js
deleted file mode 100644
index 8aa01e2ae5d..00000000000
--- a/packages/webchannel-wrapper/externs/overrides.js
+++ /dev/null
@@ -1,86 +0,0 @@
-/**
- * @license
- * Copyright 2017 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Overrides for the goog.net.WebChannel.Options object provided
- * by closure-library. This prevents the mangling of these properties
- * so downstream clients can properly leverage the API
- */
-
-/** @record @suppress {duplicate} */
-goog.net.WebChannel.Options = {};
-
-/** @type {Object<string, string>|undefined} */
-goog.net.WebChannel.Options.messageHeaders;
-
-/** @type {Object<string, string>|undefined} */
-goog.net.WebChannel.Options.initMessageHeaders;
-
-/** @type {string|boolean|undefined} */
-goog.net.WebChannel.Options.messageContentType;
-
-/** @type {Object<string, string>|undefined|undefined} */
-goog.net.WebChannel.Options.messageUrlParams;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.clientProtocolHeaderRequired;
-
-/** @type {number|undefined} */
-goog.net.WebChannel.Options.concurrentRequestLimit;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.supportsCrossDomainXhr;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.sendRawJson;
-
-/** @type {string|undefined} */
-goog.net.WebChannel.Options.httpSessionIdParam;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.encodeInitMessageHeaders;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.fastHandshake;
-
-/** @type {!Object<string, boolean|number>|undefined} */
-goog.net.WebChannel.Options.internalChannelParams;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.forceLongPolling;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.detectBufferingProxy;
-
-/** @type {boolean|undefined} */
-goog.net.WebChannel.Options.useFetchStreams;
-
-/** @type {unknown} */
-goog.net.WebChannel.Options.xmlHttpFactory;
-
-/** @type {number|undefined} */
-goog.net.WebChannel.Options.longPollingTimeout;
-
-goog.labs.net.webChannel.requestStats.Event = {};
-goog.labs.net.webChannel.requestStats.Event.STAT_EVENT;
-
-goog.labs.net.webChannel.requestStats.StatEvent = {};
-goog.labs.net.webChannel.requestStats.StatEvent.stat;
-
-goog.labs.net.webChannel.requestStats.Stat = {};
-goog.labs.net.webChannel.requestStats.Stat.PROXY;
-goog.labs.net.webChannel.requestStats.Stat.NOPROXY;
diff --git a/packages/webchannel-wrapper/gulpfile.js b/packages/webchannel-wrapper/gulpfile.js
deleted file mode 100644
index 820f7ea537e..00000000000
--- a/packages/webchannel-wrapper/gulpfile.js
+++ /dev/null
@@ -1,218 +0,0 @@
-/**
- * @license
- * Copyright 2020 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-const gulp = require('gulp');
-const rollup = require('rollup');
-const closureCompiler = require('google-closure-compiler').gulp();
-const del = require('del');
-const path = require('path');
-const sourcemaps = require('gulp-sourcemaps');
-const { resolve } = require('path');
-const commonjs = require('@rollup/plugin-commonjs');
-const rollupSourcemaps = require('rollup-plugin-sourcemaps');
-const typescriptPlugin = require('rollup-plugin-typescript2');
-const typescript = require('typescript');
-const pkg = require('./package.json');
-
-// Copied from "../../scripts/build/rollup_emit_module_package_file" which is ESM
-// and would require converting this file to MJS to use
-function emitModulePackageFile() {
-  return {
-    generateBundle() {
-      this.emitFile({
-        fileName: 'package.json',
-        source: `{"type":"module"}`,
-        type: 'asset'
-      });
-    },
-    name: 'emit-module-package-file'
-  };
-}
-
-// The optimization level for the JS compiler.
-// Valid levels: WHITESPACE_ONLY, SIMPLE_OPTIMIZATIONS, ADVANCED_OPTIMIZATIONS.
-const OPTIMIZATION_LEVEL = 'ADVANCED_OPTIMIZATIONS';
-
-// For minified builds, wrap the output so we avoid leaking global variables.
-const CJS_WRAPPER_PREFIX = `(function() {`;
-const CJS_WRAPPER_SUFFIX =
-  `}).apply(typeof global !== 'undefined' ? ` +
-  `global : typeof self !== 'undefined' ? ` +
-  `self : typeof window !== 'undefined' ? window : {});`;
-
-const closureLibRoot = path.dirname(
-  require.resolve('google-closure-library/package.json')
-);
-
-const closureDefines = [
-  // Avoid unsafe eval() calls (https://github.com/firebase/firebase-js-sdk/issues/798)
-  'goog.json.USE_NATIVE_JSON=true',
-  // Disable debug logging (saves 8780 bytes).
-  'goog.DEBUG=false',
-  // Disable fallbacks for running async code (saves 1472 bytes).
-  'goog.ASSUME_NATIVE_PROMISE=true',
-  // Disables IE8-specific event fallback code (saves 523 bytes).
-  'goog.events.CAPTURE_SIMULATION_MODE=0',
-  // Disable IE-Specific ActiveX fallback for XHRs (saves 524 bytes).
-  'goog.net.XmlHttpDefines.ASSUME_NATIVE_XHR=true',
-  // Disable Origin Trials code for WebChannel (saves 1786 bytes).
-  'goog.net.webChannel.ALLOW_ORIGIN_TRIAL_FEATURES=false'
-];
-
-/**
- * Generates a closure compiler build of webchannel-wrapper.
- * @param {string} filename name of the generated file
- * @param {string} prefix prefix to the compiled code
- * @param {string} suffix suffix to the compiled code
- */
-function createBuildTask(filename, prefix, suffix, languageout) {
-  return function closureBuild() {
-    return gulp
-      .src(
-        [
-          `${closureLibRoot}/closure/goog/**/*.js`,
-          `${closureLibRoot}/third_party/closure/goog/**/*.js`,
-          'src/**/*.js'
-        ],
-        { base: '.' }
-      )
-      .pipe(sourcemaps.init())
-      .pipe(
-        closureCompiler({
-          js_output_file: filename,
-          output_wrapper: `${prefix}%output%${suffix}`,
-          entry_point: 'firebase.webchannel.wrapper',
-          compilation_level: OPTIMIZATION_LEVEL,
-          externs: [
-            resolve(__dirname, './externs/overrides.js'),
-            resolve(__dirname, './externs/module.js')
-          ],
-          language_out: languageout,
-          dependency_mode: 'PRUNE',
-          define: closureDefines
-        })
-      )
-      .pipe(sourcemaps.write('.'))
-      .pipe(gulp.dest('dist'));
-  };
-}
-
-function createRollupTask({
-  inputPath,
-  outputExtension,
-  compileToES5 = false,
-  format = 'es'
-}) {
-  return async function rollupBuild() {
-    const plugins = [rollupSourcemaps(), commonjs()];
-    if (compileToES5) {
-      plugins.push(
-        typescriptPlugin({
-          typescript,
-          // Uncomment for development only. Prevents caching between builds.
-          // clean: true,
-          compilerOptions: { allowJs: true },
-          include: ['dist/**/*.js']
-        })
-      );
-    }
-    if (format === 'es') {
-      plugins.push(emitModulePackageFile());
-    }
-    const inputOptions = {
-      input: inputPath,
-      plugins
-    };
-
-    let outputFilename;
-    if (format === 'es') {
-      if (compileToES5) {
-        // ESM5
-        outputFilename = pkg.esm5;
-      } else {
-        // ESM2017
-        outputFilename = pkg.module;
-      }
-    } else {
-      // CJS
-      outputFilename = pkg.main;
-    }
-    const outputOptions = {
-      file: outputFilename,
-      format,
-      sourcemap: true,
-      // Prevents warning when compiling CJS that there are named and default exports together.
-      exports: 'named'
-    };
-
-    const bundle = await rollup.rollup(inputOptions);
-    return bundle.write(outputOptions);
-  };
-}
-
-async function deleteIntermediateFiles() {
-  await del('dist/temp');
-}
-
-// Closure-generated ES2017 intermediate file (no wrapper text)
-const intermediateEsmFile = 'temp/esm.js';
-const intermediateEsmPath = resolve(__dirname, 'dist/', intermediateEsmFile);
-const esmBuild = createBuildTask(
-  intermediateEsmFile,
-  '',
-  '',
-  'ECMASCRIPT_2017'
-);
-
-// cjs output
-// Closure-generated ES5 CJS build
-const cjsBuildOutput = 'index.js';
-const cjsBuild = createBuildTask(
-  cjsBuildOutput,
-  CJS_WRAPPER_PREFIX,
-  CJS_WRAPPER_SUFFIX,
-  'ECMASCRIPT5'
-);
-
-gulp.task('cjs', cjsBuild);
-
-// esm intermediateEsmPath
-const rollupEsmTask = createRollupTask({
-  inputPath: intermediateEsmPath,
-  outputExtension: 'esm',
-  compileToES5: true,
-  format: 'es'
-});
-gulp.task('esm', gulp.series(esmBuild, rollupEsmTask));
-
-// esm2017 output
-const rollup2017Task = createRollupTask({
-  inputPath: intermediateEsmPath,
-  outputExtension: 'esm2017',
-  compileToES5: false,
-  format: 'es'
-});
-gulp.task('esm2017', gulp.series(esmBuild, rollup2017Task));
-
-gulp.task(
-  'allEsm',
-  gulp.series(esmBuild, gulp.parallel(rollupEsmTask, rollup2017Task))
-);
-
-gulp.task('buildAll', gulp.parallel('cjs', 'allEsm'));
-
-gulp.task('default', gulp.series('buildAll', deleteIntermediateFiles));
diff --git a/packages/webchannel-wrapper/package.json b/packages/webchannel-wrapper/package.json
index 7efcd02a555..ad2a8df0bdb 100644
--- a/packages/webchannel-wrapper/package.json
+++ b/packages/webchannel-wrapper/package.json
@@ -3,35 +3,39 @@
   "version": "0.10.6",
   "description": "A wrapper of the webchannel packages from closure-library for use outside of a closure compiled application",
   "author": "Firebase <firebase-support@google.com> (https://firebase.google.com/)",
-  "main": "dist/index.js",
-  "module": "dist/esm/index.esm2017.js",
-  "esm5": "dist/esm/index.esm.js",
+  "main": "empty.js",
   "exports": {
-    ".": {
-      "types": "./src/index.d.ts",
-      "require": "./dist/index.js",
-      "esm5": "./dist/esm/index.esm.js",
-      "default": "./dist/esm/index.esm2017.js"
+    "./webchannel-blob": {
+      "types": "./dist/webchannel-blob/webchannel_blob_types.d.ts",
+      "require": "./dist/webchannel-blob/webchannel_blob_es2018.js",
+      "esm5": "./dist/webchannel-blob/webchannel_blob_es5.js",
+      "default": "./dist/webchannel-blob/esm/webchannel_blob_es2018.js"
+    },
+    "./bloom-blob": {
+      "types": "./dist/bloom-blob/bloom_blob_types.d.ts",
+      "require": "./dist/bloom-blob/bloom_blob_es2018.js",
+      "es5": "./dist/bloom-blob/bloom_blob_es5.js",
+      "default": "./dist/bloom-blob/esm/bloom_blob_es2018.js"
     },
     "./package.json": "./package.json"
   },
   "files": [
-    "dist"
+    "dist",
+    "bloom-blob/package.json",
+    "webchannel-blob/package.json"
   ],
   "scripts": {
     "dev": "watch 'yarn build' src",
-    "build": "gulp",
+    "build": "rollup -c",
     "test": "echo 'No test suite for webchannel-wrapper'",
     "test:ci": "echo 'No test suite for webchannel-wrapper'"
   },
   "license": "Apache-2.0",
   "devDependencies": {
+    "closure-net": "git+https://github.com/google/closure-net.git#9844d60",
     "@rollup/plugin-commonjs": "21.1.0",
-    "google-closure-compiler": "20230228.0.0",
-    "google-closure-library": "git+https://github.com/google/closure-library.git#7818ff7",
-    "gulp": "4.0.2",
-    "gulp-sourcemaps": "3.0.0",
     "rollup": "2.79.1",
+    "rollup-plugin-copy": "3.5.0",
     "rollup-plugin-sourcemaps": "0.6.3",
     "rollup-plugin-typescript2": "0.31.2",
     "typescript": "4.7.4"
@@ -41,7 +45,7 @@
     "type": "git",
     "url": "git+https://github.com/firebase/firebase-js-sdk.git"
   },
-  "typings": "src/index.d.ts",
+  "typings": "./dist/webchannel-blob/webchannel_blob_types.d.ts",
   "bugs": {
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   }
diff --git a/packages/webchannel-wrapper/rollup.config.js b/packages/webchannel-wrapper/rollup.config.js
new file mode 100644
index 00000000000..77c29ecb4ac
--- /dev/null
+++ b/packages/webchannel-wrapper/rollup.config.js
@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { join } from 'path';
+import copy from 'rollup-plugin-copy';
+import commonjs from '@rollup/plugin-commonjs';
+import typescriptPlugin from 'rollup-plugin-typescript2';
+import typescript from 'typescript';
+import { emitModulePackageFile } from '../../scripts/build/rollup_emit_module_package_file';
+import pkg from './package.json';
+
+const closureBlobsDir = '../../node_modules/closure-net/firebase/';
+
+const es2017BuildPlugins = [
+  copy({
+    targets: [
+      {
+        src: join(closureBlobsDir, 'webchannel_blob_*.*'),
+        dest: 'dist/webchannel-blob'
+      },
+      { src: join(closureBlobsDir, 'bloom_blob_*.*'), dest: 'dist/bloom-blob' }
+    ]
+  }),
+  typescriptPlugin({
+    typescript,
+    tsconfigOverride: {
+      compilerOptions: {
+        target: 'es2017'
+      }
+    }
+  }),
+  commonjs()
+];
+
+/**
+ * ESM builds
+ */
+const esm2017Builds = [
+  {
+    input: join(closureBlobsDir, 'webchannel_blob_es2018.js'),
+    output: {
+      file: pkg.exports['./webchannel-blob'].default,
+      format: 'es',
+      sourcemap: true
+    },
+    plugins: [...es2017BuildPlugins, emitModulePackageFile()]
+  },
+  {
+    input: join(closureBlobsDir, 'bloom_blob_es2018.js'),
+    output: {
+      file: pkg.exports['./bloom-blob'].default,
+      format: 'es',
+      sourcemap: true
+    },
+    plugins: [...es2017BuildPlugins, emitModulePackageFile()]
+  }
+];
+
+export default esm2017Builds;
diff --git a/packages/webchannel-wrapper/src/index.d.ts b/packages/webchannel-wrapper/src/index.d.ts
deleted file mode 100644
index 776bb8e8634..00000000000
--- a/packages/webchannel-wrapper/src/index.d.ts
+++ /dev/null
@@ -1,165 +0,0 @@
-/**
- * @license
- * Copyright 2019 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// WARNING: This is not a complete set of types exported by WebChannelWrapper.
-// It is merely meant to support the usage patterns of the Firestore SDK.
-
-export var EventType: {
-  COMPLETE: string;
-};
-
-export namespace WebChannel {
-  export var EventType: {
-    OPEN: string;
-    CLOSE: string;
-    ERROR: string;
-    MESSAGE: string;
-  };
-}
-
-export var Event: {
-  STAT_EVENT: string;
-};
-
-export var Stat: {
-  PROXY: number;
-  NOPROXY: number;
-};
-
-export var ErrorCode: {
-  NO_ERROR: number;
-  HTTP_ERROR: number;
-  TIMEOUT: number;
-};
-
-export interface Headers {
-  [name: string]: string | number;
-}
-
-export interface WebChannelError {
-  error?: { status: string; message: string };
-}
-
-export class XhrIo {
-  send(
-    url: string,
-    method?: string,
-    body?: string,
-    headers?: Headers,
-    timeoutInterval?: number
-  ): void;
-
-  getLastErrorCode(): number;
-
-  getLastError(): string;
-
-  getStatus(): number;
-
-  getResponseText(): string;
-
-  getResponseJson(): WebChannelError | object;
-
-  listenOnce(type: string, cb: (param: unknown) => void): void;
-
-  setWithCredentials(withCredentials: boolean): void;
-}
-
-export interface WebChannelOptions {
-  messageHeaders?: {
-    // To ensure compatibility with property minifcation tools, keys need to
-    // be listed explicity.
-    [k: string]: never;
-  };
-  initMessageHeaders?: {
-    // To ensure compatibility with property minifcation tools, keys need to
-    // be listed explicity.
-    [k: string]: never;
-  };
-  messageContentType?: string;
-  messageUrlParams?: {
-    database?: string;
-  };
-  clientProtocolHeaderRequired?: boolean;
-  concurrentRequestLimit?: number;
-  supportsCrossDomainXhr?: boolean;
-  sendRawJson?: boolean;
-  httpSessionIdParam?: string;
-  encodeInitMessageHeaders?: boolean;
-  forceLongPolling?: boolean;
-  detectBufferingProxy?: boolean;
-  longPollingTimeout?: number;
-  fastHandshake?: boolean;
-  disableRedac?: boolean;
-  clientProfile?: string;
-  internalChannelParams?: {
-    forwardChannelRequestTimeoutMs?: number;
-  };
-  useFetchStreams?: boolean;
-  xmlHttpFactory?: unknown;
-  requestRefreshThresholds?: { [key: string]: number };
-}
-
-export interface EventTarget {
-  listen(type: string | number, cb: (param: unknown) => void): void;
-}
-
-export interface WebChannel extends EventTarget {
-  open(): void;
-  close(): void;
-  send(msg: unknown): void;
-}
-
-export interface StatEvent {
-  stat: number;
-}
-
-export interface WebChannelTransport {
-  createWebChannel(url: string, options: WebChannelOptions): WebChannel;
-}
-
-export function createWebChannelTransport(): WebChannelTransport;
-
-export function getStatEventTarget(): EventTarget;
-
-export class FetchXmlHttpFactory {
-  constructor(options: {});
-}
-
-// See https://google.github.io/closure-library/api/goog.crypt.Md5.html
-// Unit test are written in
-// packages/firestore/test/unit/core/webchannel_wrapper.test.ts
-export class Md5 {
-  reset(): void;
-  digest(): Array<number>;
-  update(bytes: Array<number> | Uint8Array | string, opt_length?: number): void;
-}
-
-// See https://google.github.io/closure-library/api/goog.math.Integer.html
-// Unit test are written in
-// packages/firestore/test/unit/core/webchannel_wrapper.test.ts
-export class Integer {
-  constructor(bits: Array<number>, sign: number);
-  add(other: Integer): Integer;
-  multiply(other: Integer): Integer;
-  modulo(other: Integer): Integer;
-  compare(other: Integer): number;
-  toNumber(): number;
-  toString(opt_radix?: number): string;
-  getBits(index: number): number;
-  static fromNumber(value: number): Integer;
-  static fromString(str: string, opt_radix?: number): Integer;
-}
diff --git a/packages/webchannel-wrapper/src/index.js b/packages/webchannel-wrapper/src/index.js
deleted file mode 100644
index 7346b0acaa4..00000000000
--- a/packages/webchannel-wrapper/src/index.js
+++ /dev/null
@@ -1,109 +0,0 @@
-/**
- * @license
- * Copyright 2017 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Bring in closure-library dependencies
- */
-
-goog.provide('firebase.webchannel.wrapper');
-
-// goog.net.WebChannelTransport
-goog.require('goog.net.createWebChannelTransport');
-goog.require('goog.net.FetchXmlHttpFactory');
-goog.require('goog.labs.net.webChannel.requestStats');
-goog.require('goog.labs.net.webChannel.WebChannelBaseTransport');
-
-/**
- * NOTE: The `createWebChannel` function takes an options object as a second param
- * whose properties are typically mangled. We override these in externs/overrides.js
- * Without those externs, this does not function properly.
- */
-goog.labs.net.webChannel.WebChannelBaseTransport.prototype['createWebChannel'] =
-  goog.labs.net.webChannel.WebChannelBaseTransport.prototype.createWebChannel;
-goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype['send'] =
-  goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype.send;
-goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype['open'] =
-  goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype.open;
-goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype['close'] =
-  goog.labs.net.webChannel.WebChannelBaseTransport.Channel.prototype.close;
-
-// goog.net.ErrorCode
-goog.require('goog.net.ErrorCode');
-goog.net.ErrorCode['NO_ERROR'] = goog.net.ErrorCode.NO_ERROR;
-goog.net.ErrorCode['TIMEOUT'] = goog.net.ErrorCode.TIMEOUT;
-goog.net.ErrorCode['HTTP_ERROR'] = goog.net.ErrorCode.HTTP_ERROR;
-
-// goog.net.ErrorType
-goog.require('goog.net.EventType');
-goog.net.EventType['COMPLETE'] = goog.net.EventType.COMPLETE;
-
-// goog.net.WebChannel
-goog.require('goog.net.WebChannel');
-goog.require('goog.events.EventTarget');
-goog.net.WebChannel['EventType'] = goog.net.WebChannel.EventType;
-goog.net.WebChannel.EventType['OPEN'] = goog.net.WebChannel.EventType.OPEN;
-goog.net.WebChannel.EventType['CLOSE'] = goog.net.WebChannel.EventType.CLOSE;
-goog.net.WebChannel.EventType['ERROR'] = goog.net.WebChannel.EventType.ERROR;
-goog.net.WebChannel.EventType['MESSAGE'] =
-  goog.net.WebChannel.EventType.MESSAGE;
-goog.events.EventTarget.prototype['listen'] =
-  goog.events.EventTarget.prototype.listen;
-
-goog.require('goog.net.XhrIo');
-goog.net.XhrIo.prototype['listenOnce'] = goog.net.XhrIo.prototype.listenOnce;
-goog.net.XhrIo.prototype['getLastError'] =
-  goog.net.XhrIo.prototype.getLastError;
-goog.net.XhrIo.prototype['getLastErrorCode'] =
-  goog.net.XhrIo.prototype.getLastErrorCode;
-goog.net.XhrIo.prototype['getStatus'] = goog.net.XhrIo.prototype.getStatus;
-goog.net.XhrIo.prototype['getResponseJson'] =
-  goog.net.XhrIo.prototype.getResponseJson;
-goog.net.XhrIo.prototype['getResponseText'] =
-  goog.net.XhrIo.prototype.getResponseText;
-goog.net.XhrIo.prototype['send'] = goog.net.XhrIo.prototype.send;
-goog.net.XhrIo.prototype['setWithCredentials'] =
-  goog.net.XhrIo.prototype.setWithCredentials;
-
-goog.require('goog.crypt.Md5');
-goog.crypt.Md5.prototype['digest'] = goog.crypt.Md5.prototype.digest;
-goog.crypt.Md5.prototype['reset'] = goog.crypt.Md5.prototype.reset;
-goog.crypt.Md5.prototype['update'] = goog.crypt.Md5.prototype.update;
-
-goog.require('goog.math.Integer');
-goog.math.Integer.prototype['add'] = goog.math.Integer.prototype.add;
-goog.math.Integer.prototype['multiply'] = goog.math.Integer.prototype.multiply;
-goog.math.Integer.prototype['modulo'] = goog.math.Integer.prototype.modulo;
-goog.math.Integer.prototype['compare'] = goog.math.Integer.prototype.compare;
-goog.math.Integer.prototype['toNumber'] = goog.math.Integer.prototype.toNumber;
-goog.math.Integer.prototype['toString'] = goog.math.Integer.prototype.toString;
-goog.math.Integer.prototype['getBits'] = goog.math.Integer.prototype.getBits;
-goog.math.Integer['fromNumber'] = goog.math.Integer.fromNumber;
-goog.math.Integer['fromString'] = goog.math.Integer.fromString;
-
-module['exports']['createWebChannelTransport'] =
-  goog.net.createWebChannelTransport;
-module['exports']['getStatEventTarget'] =
-  goog.labs.net.webChannel.requestStats.getStatEventTarget;
-module['exports']['ErrorCode'] = goog.net.ErrorCode;
-module['exports']['EventType'] = goog.net.EventType;
-module['exports']['Event'] = goog.labs.net.webChannel.requestStats.Event;
-module['exports']['Stat'] = goog.labs.net.webChannel.requestStats.Stat;
-module['exports']['FetchXmlHttpFactory'] = goog.net.FetchXmlHttpFactory;
-module['exports']['WebChannel'] = goog.net.WebChannel;
-module['exports']['XhrIo'] = goog.net.XhrIo;
-module['exports']['Md5'] = goog.crypt.Md5;
-module['exports']['Integer'] = goog.math.Integer;
diff --git a/packages/webchannel-wrapper/tsconfig.json b/packages/webchannel-wrapper/tsconfig.json
index a777c9d54b7..23e05a91330 100644
--- a/packages/webchannel-wrapper/tsconfig.json
+++ b/packages/webchannel-wrapper/tsconfig.json
@@ -4,5 +4,6 @@
     "declaration": false,
     "outDir": "dist",
     "downlevelIteration": true,
-  }
+  },
+  "include": ["../../node_modules/closure-net/firebase"]
 }
diff --git a/packages/webchannel-wrapper/webchannel-blob/package.json b/packages/webchannel-wrapper/webchannel-blob/package.json
new file mode 100644
index 00000000000..cb339b82557
--- /dev/null
+++ b/packages/webchannel-wrapper/webchannel-blob/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "@firebase/webchannel-wrapper/webchannel-blob",
+  "description": "Webchannel related code from the Closure library.",
+  "main": "../dist/webchannel-blob/webchannel_blob_es2018.js",
+  "browser": "../dist/webchannel-blob/esm/webchannel_blob_es2018.js",
+  "module": "../dist/webchannel-blob/esm/webchannel_blob_es2018.js",
+  "esm5": "../dist/webchannel-blob/webchannel_blob_es5.js",
+  "typings": "../dist/webchannel-blob/webchannel_blob_types.d.ts"
+}
diff --git a/repo-scripts/size-analysis/analysis-helper.ts b/repo-scripts/size-analysis/analysis-helper.ts
index 11dc499aedc..9507bfe253c 100644
--- a/repo-scripts/size-analysis/analysis-helper.ts
+++ b/repo-scripts/size-analysis/analysis-helper.ts
@@ -498,7 +498,7 @@ export async function generateReportForModule(
  *
  * @param pkgJson package.json of the module.
  *
- * This function implements a fallback of locating module's budle file.
+ * This function implements a fallback of locating module's bundle file.
  * It first looks at esm2017 field of package.json, then module field. Main
  * field at the last.
  *
diff --git a/yarn.lock b/yarn.lock
index 6cf0c03150e..dead03b0c38 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5518,20 +5518,10 @@ camelcase@^6.0.0, camelcase@^6.2.0:
   resolved "https://registry.npmjs.org/camelcase/-/camelcase-6.2.0.tgz"
   integrity sha512-c7wVvbw3f37nuobQNtgsgG9POC9qMbNuMQmTCqZv23b6MIz0fcYpBiOlv9gEN/hdLdnZTDQhg6e9Dq5M1vKvfg==
 
-caniuse-lite@^1.0.30001259:
-  version "1.0.30001429"
-  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001429.tgz"
-  integrity sha512-511ThLu1hF+5RRRt0zYCf2U2yRr9GPF6m5y90SBCWsvSoYoW7yAGlv/elyPaNfvGCkp6kj/KFZWU0BMA69Prsg==
-
-caniuse-lite@^1.0.30001517:
-  version "1.0.30001524"
-  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001524.tgz"
-  integrity sha512-Jj917pJtYg9HSJBF95HVX3Cdr89JUyLT4IZ8SvM5aDRni95swKgYi3TgYLH5hnGfPE/U1dg6IfZ50UsIlLkwSA==
-
-caniuse-lite@^1.0.30001587:
-  version "1.0.30001600"
-  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001600.tgz#93a3ee17a35aa6a9f0c6ef1b2ab49507d1ab9079"
-  integrity sha512-+2S9/2JFhYmYaDpZvo0lKkfvuKIglrx68MwOBqMGHhQsNkLjB5xtc/TGoEPs+MxjSyN/72qer2g97nzR641mOQ==
+caniuse-lite@^1.0.30001259, caniuse-lite@^1.0.30001517, caniuse-lite@^1.0.30001587:
+  version "1.0.30001611"
+  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001611.tgz"
+  integrity sha512-19NuN1/3PjA3QI8Eki55N8my4LzfkMCRLgCVfrl/slbSAchQfV0+GwjPrK3rq37As4UCLlM/DHajbKkAqbv92Q==
 
 cardinal@^2.1.1:
   version "2.1.1"
@@ -5573,7 +5563,7 @@ chai@4.4.1:
     pathval "^1.1.1"
     type-detect "^4.0.8"
 
-chalk@4.1.2, chalk@4.x, chalk@^4.0.0, chalk@^4.1.0, chalk@^4.1.1, chalk@^4.1.2:
+chalk@4.1.2, chalk@^4.0.0, chalk@^4.1.0, chalk@^4.1.1, chalk@^4.1.2:
   version "4.1.2"
   resolved "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz"
   integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
@@ -5893,6 +5883,10 @@ cloneable-readable@^1.0.0:
     process-nextick-args "^2.0.0"
     readable-stream "^2.3.5"
 
+"closure-net@git+https://github.com/google/closure-net.git#9844d60":
+  version "0.0.0"
+  resolved "git+https://github.com/google/closure-net.git#9844d605191623eaba4b184775610fe875e78ac4"
+
 cmd-shim@^4.1.0:
   version "4.1.0"
   resolved "https://registry.npmjs.org/cmd-shim/-/cmd-shim-4.1.0.tgz"
@@ -9195,45 +9189,6 @@ google-auth-library@^8.0.2:
     jws "^4.0.0"
     lru-cache "^6.0.0"
 
-google-closure-compiler-java@^20230228.0.0:
-  version "20230228.0.0"
-  resolved "https://registry.npmjs.org/google-closure-compiler-java/-/google-closure-compiler-java-20230228.0.0.tgz"
-  integrity sha512-t0sXYJbhfkuNTF6zniwrTv4gLap620D32v6GwBJQzlYUg0lb7yQHN9KswwqBsuuO917cPNwW4okI0O40G7GrMQ==
-
-google-closure-compiler-linux@^20230228.0.0:
-  version "20230228.0.0"
-  resolved "https://registry.npmjs.org/google-closure-compiler-linux/-/google-closure-compiler-linux-20230228.0.0.tgz#17cb6187015e0e2ae8c2dd5b560228fdf5625818"
-  integrity sha512-5YLxfWS8lvHkD/a0+pitTuDV1X9QPBToGQ5mnLFg7HcbBR1w6I5ZKHjl7FAsAOHEXYwIrStwwaLzrNzbolrZLg==
-
-google-closure-compiler-osx@^20230228.0.0:
-  version "20230228.0.0"
-  resolved "https://registry.npmjs.org/google-closure-compiler-osx/-/google-closure-compiler-osx-20230228.0.0.tgz"
-  integrity sha512-ORveHpHuNhJEJIGir35+xP4UuBOldSO8XeOwJV5yunUhZAPzR4aixdTdtm6i0GsqW4/Eu2cjcHrkIR3eFCcwSg==
-
-google-closure-compiler-windows@^20230228.0.0:
-  version "20230228.0.0"
-  resolved "https://registry.npmjs.org/google-closure-compiler-windows/-/google-closure-compiler-windows-20230228.0.0.tgz#dff4afcd6d21a831b38a9bdb873eed0daca79807"
-  integrity sha512-xKMjUq6JwEOFqS97S86TWkn+BMiDHjP85mMgAmR8vRmKxgfHIyxMcr+RlMz0msgY9jedgj119KXyOe32lIQTjA==
-
-google-closure-compiler@20230228.0.0:
-  version "20230228.0.0"
-  resolved "https://registry.npmjs.org/google-closure-compiler/-/google-closure-compiler-20230228.0.0.tgz"
-  integrity sha512-jFI4QNZgM4WhNIoaRNwA5kHq6n6NKSWZj3N9HgRsJE9bN4LUrkIURI+svChbEp/WmGh3Bt3o3/5kUlOOWyCo3Q==
-  dependencies:
-    chalk "4.x"
-    google-closure-compiler-java "^20230228.0.0"
-    minimist "1.x"
-    vinyl "2.x"
-    vinyl-sourcemaps-apply "^0.2.0"
-  optionalDependencies:
-    google-closure-compiler-linux "^20230228.0.0"
-    google-closure-compiler-osx "^20230228.0.0"
-    google-closure-compiler-windows "^20230228.0.0"
-
-"google-closure-library@git+https://github.com/google/closure-library.git#7818ff7":
-  version "20230802.0.0"
-  resolved "git+https://git@github.com/google/closure-library.git#7818ff7dc0b53555a7fb3c3427e6761e88bde3a2"
-
 google-gax@^3.0.1:
   version "3.1.3"
   resolved "https://registry.npmjs.org/google-gax/-/google-gax-3.1.3.tgz"
@@ -12517,7 +12472,7 @@ minimist-options@4.1.0, minimist-options@^4.0.2:
     is-plain-obj "^1.1.0"
     kind-of "^6.0.3"
 
-minimist@1.x, minimist@^1.2.0, minimist@^1.2.3, minimist@^1.2.5:
+minimist@^1.2.0, minimist@^1.2.3, minimist@^1.2.5:
   version "1.2.5"
   resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz"
   integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
@@ -16058,7 +16013,7 @@ source-map-url@^0.4.0:
   resolved "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.1.tgz"
   integrity sha512-cPiFOTLUKvJFIg4SKVScy4ilPPW6rFgMgfuZJPNoDuMs3nC1HbMUycBoJw77xFIp6z1UJQJOfx6C9GMH80DiTw==
 
-source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.3:
+source-map@^0.5.0, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
@@ -17809,14 +17764,7 @@ vinyl-sourcemap@^1.1.0:
     remove-bom-buffer "^3.0.0"
     vinyl "^2.0.0"
 
-vinyl-sourcemaps-apply@^0.2.0:
-  version "0.2.1"
-  resolved "https://registry.npmjs.org/vinyl-sourcemaps-apply/-/vinyl-sourcemaps-apply-0.2.1.tgz"
-  integrity sha1-q2VJ1h0XLCsbh75cUI0jnI74dwU=
-  dependencies:
-    source-map "^0.5.1"
-
-vinyl@2.x, vinyl@^2.0.0, vinyl@^2.1.0, vinyl@^2.2.1:
+vinyl@^2.0.0, vinyl@^2.1.0, vinyl@^2.2.1:
   version "2.2.1"
   resolved "https://registry.npmjs.org/vinyl/-/vinyl-2.2.1.tgz"
   integrity sha512-LII3bXRFBZLlezoG5FfZVcXflZgWP/4dCwKtxd5ky9+LOtM4CS3bIRQsmR1KMnMW07jpE8fqR2lcxPZ+8sJIcw==