diff --git a/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java b/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
index 088277b5ca..c3508b77db 100644
--- a/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
+++ b/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
@@ -22,6 +22,7 @@ import com.android.launcher3.pm.InstallSessionHelper;
 import com.android.launcher3.util.DaggerSingletonTracker;
 import com.android.launcher3.util.ScreenOnTracker;
 import com.android.launcher3.util.SettingsCache;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 import dagger.BindsInstance;
 
@@ -38,6 +39,7 @@ public interface LauncherBaseAppComponent {
     InstallSessionHelper getInstallSessionHelper();
     ScreenOnTracker getScreenOnTracker();
     SettingsCache getSettingsCache();
+    CustomWidgetManager getCustomWidgetManager();
 
     /** Builder for LauncherBaseAppComponent. */
     interface Builder {
diff --git a/src/com/android/launcher3/widget/custom/CustomWidgetManager.java b/src/com/android/launcher3/widget/custom/CustomWidgetManager.java
index faa5d12875..0778172127 100644
--- a/src/com/android/launcher3/widget/custom/CustomWidgetManager.java
+++ b/src/com/android/launcher3/widget/custom/CustomWidgetManager.java
@@ -33,7 +33,12 @@ import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.R;
-import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.launcher3.dagger.ApplicationContext;
+import com.android.launcher3.dagger.LauncherAppSingleton;
+import com.android.launcher3.dagger.LauncherBaseAppComponent;
+import com.android.launcher3.util.DaggerSingletonObject;
+import com.android.launcher3.util.DaggerSingletonTracker;
+import com.android.launcher3.util.ExecutorUtil;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.PluginManagerWrapper;
 import com.android.launcher3.util.SafeCloseable;
@@ -50,13 +55,16 @@ import java.util.Map;
 import java.util.function.Consumer;
 import java.util.stream.Stream;
 
+import javax.inject.Inject;
+
 /**
  * CustomWidgetManager handles custom widgets implemented as a plugin.
  */
+@LauncherAppSingleton
 public class CustomWidgetManager implements PluginListener<CustomWidgetPlugin>, SafeCloseable {
 
-    public static final MainThreadInitializedObject<CustomWidgetManager> INSTANCE =
-            new MainThreadInitializedObject<>(CustomWidgetManager::new);
+    public static final DaggerSingletonObject<CustomWidgetManager> INSTANCE =
+            new DaggerSingletonObject<>(LauncherBaseAppComponent::getCustomWidgetManager);
 
     private static final String TAG = "CustomWidgetManager";
     private static final String PLUGIN_PKG = "android";
@@ -66,34 +74,44 @@ public class CustomWidgetManager implements PluginListener<CustomWidgetPlugin>,
     private Consumer<PackageUserKey> mWidgetRefreshCallback;
     private final @NonNull AppWidgetManager mAppWidgetManager;
 
-    private CustomWidgetManager(Context context) {
-        this(context, AppWidgetManager.getInstance(context));
+    @Inject
+    CustomWidgetManager(@ApplicationContext Context context, DaggerSingletonTracker tracker) {
+        this(context, AppWidgetManager.getInstance(context), tracker);
     }
 
     @VisibleForTesting
-    CustomWidgetManager(Context context, @NonNull AppWidgetManager widgetManager) {
+    CustomWidgetManager(@ApplicationContext Context context,
+            @NonNull AppWidgetManager widgetManager,
+            DaggerSingletonTracker tracker) {
         mContext = context;
         mAppWidgetManager = widgetManager;
         mPlugins = new HashMap<>();
         mCustomWidgets = new ArrayList<>();
-        PluginManagerWrapper.INSTANCE.get(context)
-                .addPluginListener(this, CustomWidgetPlugin.class, true);
 
-        if (enableSmartspaceAsAWidget()) {
-            for (String s: context.getResources()
-                    .getStringArray(R.array.custom_widget_providers)) {
-                try {
-                    Class<?> cls = Class.forName(s);
-                    CustomWidgetPlugin plugin = (CustomWidgetPlugin)
-                            cls.getDeclaredConstructor(Context.class).newInstance(context);
-                    onPluginConnected(plugin, context);
-                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
-                         | ClassCastException | NoSuchMethodException
-                         | InvocationTargetException e) {
-                    Log.e(TAG, "Exception found when trying to add custom widgets: " + e);
+
+        ExecutorUtil.executeSyncOnMainOrFail(() -> {
+            PluginManagerWrapper.INSTANCE.get(context)
+                    .addPluginListener(this, CustomWidgetPlugin.class, true);
+
+            if (enableSmartspaceAsAWidget()) {
+                for (String s: context.getResources()
+                        .getStringArray(R.array.custom_widget_providers)) {
+                    try {
+                        Class<?> cls = Class.forName(s);
+                        CustomWidgetPlugin plugin = (CustomWidgetPlugin)
+                                cls.getDeclaredConstructor(Context.class).newInstance(context);
+                        onPluginConnected(plugin, context);
+                    } catch (ClassNotFoundException | InstantiationException
+                             | IllegalAccessException
+                             | ClassCastException | NoSuchMethodException
+                             | InvocationTargetException e) {
+                        Log.e(TAG, "Exception found when trying to add custom widgets: " + e);
+                    }
                 }
             }
-        }
+
+            tracker.addCloseable(this);
+        });
     }
 
     @Override
diff --git a/tests/multivalentTests/src/com/android/launcher3/widget/custom/CustomWidgetManagerTest.kt b/tests/multivalentTests/src/com/android/launcher3/widget/custom/CustomWidgetManagerTest.kt
index 4b5710d5ac..82f56b8c2e 100644
--- a/tests/multivalentTests/src/com/android/launcher3/widget/custom/CustomWidgetManagerTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/widget/custom/CustomWidgetManagerTest.kt
@@ -23,6 +23,7 @@ import android.platform.test.flag.junit.SetFlagsRule
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SmallTest
 import androidx.test.platform.app.InstrumentationRegistry.getInstrumentation
+import com.android.launcher3.util.DaggerSingletonTracker
 import com.android.launcher3.util.LauncherModelHelper.SandboxModelContext
 import com.android.launcher3.util.PluginManagerWrapper
 import com.android.launcher3.util.WidgetUtils
@@ -57,12 +58,13 @@ class CustomWidgetManagerTest {
 
     @Mock private lateinit var pluginManager: PluginManagerWrapper
     @Mock private lateinit var mockAppWidgetManager: AppWidgetManager
+    @Mock private lateinit var tracker: DaggerSingletonTracker
 
     @Before
     fun setUp() {
         MockitoAnnotations.initMocks(this)
         context.putObject(PluginManagerWrapper.INSTANCE, pluginManager)
-        underTest = CustomWidgetManager(context, mockAppWidgetManager)
+        underTest = CustomWidgetManager(context, mockAppWidgetManager, tracker)
     }
 
     @After