diff --git a/Furious/QtFramework/UpdatesManager.py b/Furious/QtFramework/UpdatesManager.py
index 34d1a9a..fdbac7f 100644
--- a/Furious/QtFramework/UpdatesManager.py
+++ b/Furious/QtFramework/UpdatesManager.py
@@ -73,6 +73,7 @@ class UpdatesManager(WebGETManager):
         super().__init__(parent, actionMessage=actionMessage)
 
     def successCallback(self, networkReply, **kwargs):
+        parent = kwargs.pop('parent', None)
         showMessageBox = kwargs.pop('showMessageBox', True)
         hasNewVersionCallback = kwargs.pop('hasNewVersionCallback', None)
 
@@ -86,7 +87,7 @@ class UpdatesManager(WebGETManager):
             logger.error(f'bad network reply while checking for updates. {ex}')
 
             if showMessageBox:
-                self.showErrorMessageBox()
+                self.showErrorMessageBox(parent)
         else:
             newVersion = info['tag_name']
 
@@ -108,7 +109,10 @@ class UpdatesManager(WebGETManager):
                     hasNewVersionCallback(newVersion)
 
                 if showMessageBox:
-                    mbox = QuestionUpdateMBox(icon=AppQMessageBox.Icon.Information)
+                    mbox = QuestionUpdateMBox(
+                        parent=parent,
+                        icon=AppQMessageBox.Icon.Information,
+                    )
                     mbox.version = newVersion
                     mbox.setText(mbox.customText())
                     mbox.setInformativeText(_('Go to download page?'))
@@ -118,7 +122,10 @@ class UpdatesManager(WebGETManager):
                     mbox.open()
             else:
                 if showMessageBox:
-                    mbox = AppQMessageBox(icon=AppQMessageBox.Icon.Information)
+                    mbox = AppQMessageBox(
+                        parent=parent,
+                        icon=AppQMessageBox.Icon.Information,
+                    )
                     mbox.setWindowTitle(_(APPLICATION_NAME))
                     mbox.setText(_(f'{APPLICATION_NAME} is already the latest version'))
 
@@ -126,8 +133,8 @@ class UpdatesManager(WebGETManager):
                     mbox.open()
 
     @staticmethod
-    def showErrorMessageBox():
-        mbox = AppQMessageBox(icon=AppQMessageBox.Icon.Critical)
+    def showErrorMessageBox(parent=None):
+        mbox = AppQMessageBox(parent=parent, icon=AppQMessageBox.Icon.Critical)
         mbox.setWindowTitle(_(APPLICATION_NAME))
         mbox.setText(_('Check for updates failed'))
 
@@ -144,9 +151,11 @@ class UpdatesManager(WebGETManager):
         self,
         showMessageBox=True,
         hasNewVersionCallback: Callable[[str], None] = None,
+        **kwargs,
     ):
         self.webGET(
             self.API_URL,
             showMessageBox=showMessageBox,
             hasNewVersionCallback=hasNewVersionCallback,
+            **kwargs,
         )
diff --git a/Furious/Widget/UserServersQTableWidget.py b/Furious/Widget/UserServersQTableWidget.py
index 0dc218c..aafdf3c 100644
--- a/Furious/Widget/UserServersQTableWidget.py
+++ b/Furious/Widget/UserServersQTableWidget.py
@@ -183,6 +183,7 @@ class SubscriptionManager(WebGETManager):
             mbox = UpdateSubsInfoMBox(
                 successArgs=successArgs,
                 failureArgs=failureArgs,
+                parent=kwargs.pop('parent', None),
             )
 
             if successArgs:
diff --git a/Furious/Window/AppMainWindow.py b/Furious/Window/AppMainWindow.py
index 02a95f4..2abccb1 100644
--- a/Furious/Window/AppMainWindow.py
+++ b/Furious/Window/AppMainWindow.py
@@ -107,11 +107,12 @@ class AppMainWindow(AppQMainWindow):
         # TODO: Need this?
         # self.setAttribute(QtCore.Qt.WidgetAttribute.WA_ShowWithoutActivating)
 
-        self.updatesManager = UpdatesManager()
+        self.updatesManager = UpdatesManager(parent=self)
         self.networkStateManager = AppNetworkStateManager(parent=self)
 
         self.userServersQTableWidget = UserServersQTableWidget(parent=self)
         self.userSubsWindow = UserSubsWindow(
+            parent=self,
             deleteUniqueCallback=lambda unique: self.userServersQTableWidget.deleteItemByIndex(
                 list(
                     index
@@ -120,7 +121,7 @@ class AppMainWindow(AppQMainWindow):
                 )
             ),
         )
-        self.xrayAssetViewerWindow = XrayAssetViewerWindow()
+        self.xrayAssetViewerWindow = XrayAssetViewerWindow(parent=self)
 
         self.mainTab = AppQTabWidget()
         self.mainTab.addTab(self.userServersQTableWidget, _('Server'))
@@ -204,18 +205,23 @@ class AppMainWindow(AppQMainWindow):
             AppQAction(
                 _('Update Subscription (Use Current Proxy)'),
                 callback=lambda: self.userServersQTableWidget.updateSubs(
-                    connectedHttpProxyEndpoint()
+                    connectedHttpProxyEndpoint(),
+                    parent=self,
                 ),
             ),
             AppQAction(
                 _('Update Subscription (Force Proxy)'),
                 callback=lambda: self.userServersQTableWidget.updateSubs(
-                    '127.0.0.1:10809'
+                    '127.0.0.1:10809',
+                    parent=self,
                 ),
             ),
             AppQAction(
                 _('Update Subscription (No Proxy)'),
-                callback=lambda: self.userServersQTableWidget.updateSubs(None),
+                callback=lambda: self.userServersQTableWidget.updateSubs(
+                    None,
+                    parent=self,
+                ),
             ),
             AppQSeperator(),
             AppQAction(
@@ -296,7 +302,7 @@ class AppMainWindow(AppQMainWindow):
                     _('Check For Updates'),
                     icon=bootstrapIcon('download.svg'),
                     checkable=False,
-                    callback=lambda: self.checkForUpdates(),
+                    callback=lambda: self.checkForUpdates(parent=self),
                 ),
                 AppQSeperator(),
                 AppQAction(
@@ -340,7 +346,7 @@ class AppMainWindow(AppQMainWindow):
                         _('Check For Updates'),
                         icon=bootstrapIcon('download.svg'),
                         checkable=False,
-                        callback=lambda: self.checkForUpdates(),
+                        callback=lambda: self.checkForUpdates(parent=self),
                     ),
                     AppQSeperator(),
                     AppQAction(
@@ -407,7 +413,9 @@ class AppMainWindow(AppQMainWindow):
     def getGuiTUNSettings(self, **kwargs):
         @functools.lru_cache(None)
         def cachedGuiTUNSettings():
-            return GuiTUNSettings(self, **kwargs)
+            parent = kwargs.pop('parent', self)
+
+            return GuiTUNSettings(parent=parent, **kwargs)
 
         guiTUNSettings = cachedGuiTUNSettings()
         guiTUNSettings.factoryToInput(AS_UserTUNSettings())