diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cd2665981..8c32bfc200 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -92,6 +92,9 @@ For semantic convention package changes, see the [semconv CHANGELOG](packages/se
   * (user-facing): `baggageUtils.parsePairKeyValue` was an internal utility function that was unintentionally exported. It has been removed without replacement.
   * (user-facing): `TimeOriginLegacy` has been removed without replacement.
   * (user-facing): `isAttributeKey` was an internal utility function that was unintentionally exported. It has been removed without replacement.
+* feat(resources)!: do not read environment variables from window in browsers [#5445](https://github.com/open-telemetry/opentelemetry-js/pull/5455) @pichlermarc
+  * (user-facing): all configuration previously possible via `window.OTEL_*` is now not supported anymore, please pass configuration options to constructors instead.
+    * Note: Node.js environment variable configuration continues to work as-is.
 
 ### :rocket: (Enhancement)
 
diff --git a/packages/opentelemetry-resources/test/detectors/browser/EnvDetector.test.ts b/packages/opentelemetry-resources/test/detectors/browser/EnvDetector.test.ts
new file mode 100644
index 0000000000..573700698e
--- /dev/null
+++ b/packages/opentelemetry-resources/test/detectors/browser/EnvDetector.test.ts
@@ -0,0 +1,26 @@
+/*
+ * 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 { envDetector } from '../../../src';
+import { describeBrowser } from '../../util';
+import { assertEmptyResource } from '../../util/resource-assertions';
+
+describeBrowser('envDetector() on web browser', () => {
+  it('should return empty resource', async () => {
+    const resource = envDetector.detect();
+    assertEmptyResource(resource);
+  });
+});