diff --git a/pkg/dds/test/devtools_server/server_connection_common.dart b/pkg/dds/test/devtools_server/server_connection_common.dart
index a7a7da27f47..a153334fee7 100644
--- a/pkg/dds/test/devtools_server/server_connection_common.dart
+++ b/pkg/dds/test/devtools_server/server_connection_common.dart
@@ -3,8 +3,10 @@
 // found in the LICENSE file.
 
 import 'dart:convert';
+import 'dart:io';
 
-import 'package:devtools_shared/devtools_test_utils.dart';
+import 'package:browser_launcher/browser_launcher.dart';
+import 'package:devtools_shared/devtools_test_utils.dart' hide Chrome;
 import 'package:test/test.dart';
 
 import 'utils/server_driver.dart';
@@ -84,36 +86,60 @@ void runTest({required bool useVmService}) {
       // Spawn our own Chrome process so we can terminate it.
       final devToolsUri =
           'http://${event['params']['host']}:${event['params']['port']}';
-      final chrome = await Chrome.locate()!.start(url: devToolsUri);
+
+      // Create a temporary directory for an isolated user profile.
+      final tempDir = Directory.systemTemp.createTempSync('devtools_chrome_profile');
+
+      final chromeProcess = await Chrome.start([devToolsUri], args: [
+        '--user-data-dir=${tempDir.path}', // Ensures process isolation
+        '--no-first-run',                  // Prevents welcome dialogs
+        '--no-default-browser-check',      // Prevents default browser prompts
+        if (useChromeHeadless && headlessModeIsSupported) ...[
+          '--headless',
+          '--disable-gpu',
+          '--no-sandbox',
+        ],
+        if (Platform.isMacOS) '--use-mock-keychain',
+      ]);
+
       final stdoutSub =
-          chrome.process.stdout.transform(utf8.decoder).listen((e) {
+          chromeProcess.stdout.transform(utf8.decoder).listen((e) {
         print('[CHROME STDOUT]: $e');
       });
       final stderrSub =
-          chrome.process.stderr.transform(utf8.decoder).listen((e) {
+          chromeProcess.stderr.transform(utf8.decoder).listen((e) {
         print('[CHROME STDERR]: $e');
       });
 
-      // Wait for DevTools to inform server that it's connected.
-      print('Waiting for clients...');
-      await testController.waitForClients();
+      try {
+        // Wait for DevTools to inform server that it's connected.
+        print('Waiting for clients...');
+        await testController.waitForClients();
 
-      // Close the browser, which will disconnect DevTools SSE connection
-      // back to the server.
-      print('Killing Chrome...');
-      chrome.kill();
-      await chrome.onExit;
-      await Future.wait([stdoutSub.cancel(), stderrSub.cancel()]);
+        // Close the browser, which will disconnect DevTools SSE connection
+        // back to the server.
+        print('Killing Chrome...');
+        chromeProcess.kill();
+        await chromeProcess.exitCode;
+        await Future.wait([stdoutSub.cancel(), stderrSub.cancel()]);
 
-      // Await a long delay to wait for the SSE client to close.
-      print('Delaying to wait for SSE connection to cleanup...');
-      await delay(duration: const Duration(seconds: 15));
+        // Await a long delay to wait for the SSE client to close.
+        print('Delaying to wait for SSE connection to cleanup...');
+        await delay(duration: const Duration(seconds: 15));
 
-      // Ensure the client is completely removed from the list.
-      print('Expecting no clients...');
-      await testController.waitForClients(expectNone: true);
+        // Ensure the client is completely removed from the list.
+        print('Expecting no clients...');
+        await testController.waitForClients(expectNone: true);
 
-      print('Done!');
+        print('Done!');
+      } finally {
+        // Clean up the temporary profile directory.
+        try {
+          await tempDir.delete(recursive: true);
+        } catch (_) {
+          // Ignore cleanup errors since the OS temp dir is eventually cleaned up.
+        }
+      }
     }, timeout: const Timeout.factor(20));
   });
 }