diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cd26659814..3d94358c94e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -80,6 +80,7 @@ For semantic convention package changes, see the [semconv CHANGELOG](packages/se
 * chore!: Raise the minimum supported Node.js version to `^18.19.0 || >=20.6.0`. Support for Node.js 14, 16, and early minor versions of 18 and 20 have been dropped. This applies to all packages except the 'api' and 'semantic-conventions' packages. [#5395](https://github.com/open-telemetry/opentelemetry-js/issues/5395) @trentm
 * feat(core)!: remove TracesSamplerValues from exports [#5406](https://github.com/open-telemetry/opentelemetry-js/pull/5406) @pichlermarc
   * (user-facing): TracesSamplerValues was only consumed internally and has been removed from exports without replacement
+* chore(resources)!: Remove deprecated duplicate browser detector from `@opentelemetry/resource` in favor of `@opentelemetry/opentelemetry-browser-detector` [#5420](https://github.com/open-telemetry/opentelemetry-js/pull/5420)
 * feat(core)!: remove unused and obsolete functions and types [#5444](https://github.com/open-telemetry/opentelemetry-js/pull/5444) @pichlermarc
   * (user-facing): `VERSION` was an internal constant that was unintentionally exported. It has been removed without replacement.
   * (user-facing): `isWrapped` has been removed in favor of `isWrapped` from `@opentelemetry/instrumentation`
diff --git a/packages/opentelemetry-resources/src/detectors/BrowserDetector.ts b/packages/opentelemetry-resources/src/detectors/BrowserDetector.ts
deleted file mode 100644
index 984b08e5b75..00000000000
--- a/packages/opentelemetry-resources/src/detectors/BrowserDetector.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- *
- * 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
- *
- *      https://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 { Attributes, diag } from '@opentelemetry/api';
-import {
-  SEMRESATTRS_PROCESS_RUNTIME_DESCRIPTION,
-  SEMRESATTRS_PROCESS_RUNTIME_NAME,
-  SEMRESATTRS_PROCESS_RUNTIME_VERSION,
-} from '@opentelemetry/semantic-conventions';
-import { ResourceDetectionConfig } from '../config';
-import { DetectedResource, ResourceDetector } from '../types';
-
-/**
- * BrowserDetector will be used to detect the resources related to browser.
- */
-class BrowserDetector implements ResourceDetector {
-  detect(config?: ResourceDetectionConfig): DetectedResource {
-    const isBrowser =
-      typeof navigator !== 'undefined' &&
-      global.process?.versions?.node === undefined && // Node.js v21 adds `navigator`
-      // @ts-expect-error don't have Bun types
-      global.Bun?.version === undefined; // Bun (bun.sh) defines `navigator`
-    if (!isBrowser) {
-      return { attributes: {} };
-    }
-    const browserResource: Attributes = {
-      [SEMRESATTRS_PROCESS_RUNTIME_NAME]: 'browser',
-      [SEMRESATTRS_PROCESS_RUNTIME_DESCRIPTION]: 'Web Browser',
-      [SEMRESATTRS_PROCESS_RUNTIME_VERSION]: navigator.userAgent,
-    };
-    return this._getResourceAttributes(browserResource, config);
-  }
-  /**
-   * Validates process resource attribute map from process variables
-   *
-   * @param browserResource The un-sanitized resource attributes from process as key/value pairs.
-   * @param config: Config
-   * @returns The sanitized resource attributes.
-   */
-  private _getResourceAttributes(
-    browserResource: Attributes,
-    _config?: ResourceDetectionConfig
-  ) {
-    if (browserResource[SEMRESATTRS_PROCESS_RUNTIME_VERSION] === '') {
-      diag.debug(
-        'BrowserDetector failed: Unable to find required browser resources. '
-      );
-      return { attributes: {} };
-    } else {
-      return {
-        attributes: browserResource,
-      };
-    }
-  }
-}
-
-export const browserDetector = new BrowserDetector();
diff --git a/packages/opentelemetry-resources/src/detectors/index.ts b/packages/opentelemetry-resources/src/detectors/index.ts
index 8fac0e3574b..eaaabb7dae4 100644
--- a/packages/opentelemetry-resources/src/detectors/index.ts
+++ b/packages/opentelemetry-resources/src/detectors/index.ts
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-export { browserDetector } from './BrowserDetector';
 export { envDetector } from './EnvDetector';
 export {
   hostDetector,
diff --git a/packages/opentelemetry-resources/src/index.ts b/packages/opentelemetry-resources/src/index.ts
index 754549ba5c9..812bda333ee 100644
--- a/packages/opentelemetry-resources/src/index.ts
+++ b/packages/opentelemetry-resources/src/index.ts
@@ -17,7 +17,6 @@
 export { ResourceDetectionConfig } from './config';
 export { detectResources } from './detect-resources';
 export {
-  browserDetector,
   envDetector,
   hostDetector,
   osDetector,
diff --git a/packages/opentelemetry-resources/test/detectors/browser/BrowserDetector.test.ts b/packages/opentelemetry-resources/test/detectors/browser/BrowserDetector.test.ts
deleted file mode 100644
index 59d298f98d4..00000000000
--- a/packages/opentelemetry-resources/test/detectors/browser/BrowserDetector.test.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- *
- * 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
- *
- *      https://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 * as sinon from 'sinon';
-import { browserDetector } from '../../../src/detectors/BrowserDetector';
-import { describeBrowser } from '../../util';
-import {
-  assertEmptyResource,
-  assertResource,
-} from '../../util/resource-assertions';
-
-describeBrowser('browserDetector()', () => {
-  afterEach(() => {
-    sinon.restore();
-  });
-
-  it('should return browser information', async () => {
-    sinon.stub(globalThis, 'navigator').value({
-      userAgent: 'dddd',
-    });
-
-    const resource = browserDetector.detect();
-    assertResource(resource, {
-      version: 'dddd',
-      runtimeDescription: 'Web Browser',
-      runtimeName: 'browser',
-    });
-  });
-  it('should return empty resources if version is missing', async () => {
-    sinon.stub(globalThis, 'navigator').value({
-      userAgent: '',
-    });
-    const resource = browserDetector.detect();
-    assertEmptyResource(resource);
-  });
-});
diff --git a/packages/opentelemetry-resources/test/detectors/node/BrowserDetector.test.ts b/packages/opentelemetry-resources/test/detectors/node/BrowserDetector.test.ts
deleted file mode 100644
index 159dd02c2e5..00000000000
--- a/packages/opentelemetry-resources/test/detectors/node/BrowserDetector.test.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- *
- * 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
- *
- *      https://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 { Resource } from '../../../src';
-import { browserDetector } from '../../../src/detectors/BrowserDetector';
-import { describeNode } from '../../util';
-import { assertEmptyResource } from '../../util/resource-assertions';
-
-describeNode('browserDetector()', () => {
-  it('should return empty resources if window.document is missing', async () => {
-    const resource = new Resource(browserDetector.detect());
-    assertEmptyResource(resource);
-  });
-});