diff --git a/dwds/debug_extension_mv3/pubspec.yaml b/dwds/debug_extension_mv3/pubspec.yaml
index 9ff1938e3..4e4590924 100644
--- a/dwds/debug_extension_mv3/pubspec.yaml
+++ b/dwds/debug_extension_mv3/pubspec.yaml
@@ -1,6 +1,6 @@
 name: mv3_extension
 publish_to: none
-version: 2.1.0
+version: 2.1.1
 homepage: https://github.com/dart-lang/webdev
 description: >-
   A Chrome extension for Dart debugging.
diff --git a/dwds/debug_extension_mv3/web/cider_connection.dart b/dwds/debug_extension_mv3/web/cider_connection.dart
index 5ddd9b063..8dbda4b4a 100644
--- a/dwds/debug_extension_mv3/web/cider_connection.dart
+++ b/dwds/debug_extension_mv3/web/cider_connection.dart
@@ -26,6 +26,7 @@ const _ciderDartMessageKey = 'CIDER_DART';
 /// The types must match those defined by ChromeExtensionMessageType in the
 /// Cider extension.
 enum CiderMessageType {
+  connected,
   error,
   inspectorUrlResponse,
   inspectorUrlRequest,
@@ -54,11 +55,14 @@ Port? _ciderPort;
 /// URIs for Cider are set in the externally_connectable field in the manifest.
 void handleCiderConnectRequest(Port port) {
   if (port.name == _ciderPortName) {
+    debugLog('Received connect request from Cider', verbose: true);
     _ciderPort = port;
 
     port.onMessage.addListener(
       allowInterop(_handleMessageFromCider),
     );
+
+    sendMessageToCider(messageType: CiderMessageType.connected);
   }
 }
 
@@ -130,6 +134,7 @@ Future<void> _startDebugging({String? appId}) async {
   final tabId = _tabId(appId);
   // TODO(https://github.com/dart-lang/webdev/issues/2198): When debugging
   // with Cider, disable debugging with DevTools.
+  debugLog('Attach debugger to Cider', verbose: true);
   await attachDebugger(tabId, trigger: Trigger.cider);
 }
 
diff --git a/dwds/debug_extension_mv3/web/debug_session.dart b/dwds/debug_extension_mv3/web/debug_session.dart
index 991f37937..93609ac3e 100644
--- a/dwds/debug_extension_mv3/web/debug_session.dart
+++ b/dwds/debug_extension_mv3/web/debug_session.dart
@@ -115,7 +115,7 @@ Future<void> attachDebugger(
     forwardErrorsToCider: trigger == Trigger.cider,
   );
   if (!tabIsDebuggable) return;
-
+  debugLog('Attaching to tab $dartAppTabId', verbose: true);
   _tabIdToTrigger[dartAppTabId] = trigger;
   _registerDebugEventListeners();
   chrome.debugger.attach(
@@ -357,6 +357,7 @@ Future<bool> _connectToDwds({
       ? WebSocketClient(WebSocketChannel.connect(uri))
       : SseSocketClient(SseClient(uri.toString(), debugKey: 'DebugExtension'));
   final trigger = _tabIdToTrigger[dartAppTabId];
+  debugLog('Connecting to DWDS...', verbose: true);
   final debugSession = _DebugSession(
     client: client,
     appTabId: dartAppTabId,
@@ -418,6 +419,7 @@ void _routeDwdsEvent(String eventData, SocketClient client, int tabId) {
       }
     }
     if (message.method == 'dwds.debugUri') {
+      debugLog('Sending debug URI to Cider ${message.params}', verbose: true);
       sendMessageToCider(
         messageType: CiderMessageType.startDebugResponse,
         messageBody: message.params,
diff --git a/dwds/debug_extension_mv3/web/manifest_mv3.json b/dwds/debug_extension_mv3/web/manifest_mv3.json
index de8c490cf..ea731a775 100644
--- a/dwds/debug_extension_mv3/web/manifest_mv3.json
+++ b/dwds/debug_extension_mv3/web/manifest_mv3.json
@@ -1,6 +1,6 @@
 {
   "name": "Dart Debug Extension",
-  "version": "2.1",
+  "version": "2.1.1",
   "manifest_version": 3,
   "devtools_page": "static_assets/devtools.html",
   "action": {