diff --git a/src/plugins/coreplugin/icore.cpp b/src/plugins/coreplugin/icore.cpp
index 711fa5c424c..e468859778e 100644
--- a/src/plugins/coreplugin/icore.cpp
+++ b/src/plugins/coreplugin/icore.cpp
@@ -318,7 +318,6 @@ public:
 
     ShortcutSettings *m_shortcutSettings = nullptr;
     ToolSettings *m_toolSettings = nullptr;
-    MimeTypeSettings *m_mimeTypeSettings = nullptr;
     SystemEditor *m_systemEditor = nullptr;
 
     // actions
@@ -1343,7 +1342,6 @@ void ICorePrivate::init()
     m_modeStack = new FancyTabWidget(m_mainwindow);
     m_shortcutSettings = new ShortcutSettings;
     m_toolSettings = new ToolSettings;
-    m_mimeTypeSettings = new MimeTypeSettings;
     m_systemEditor = new SystemEditor;
     m_toggleLeftSideBarButton = new QToolButton;
     m_toggleRightSideBarButton = new QToolButton;
@@ -1455,8 +1453,6 @@ ICorePrivate::~ICorePrivate()
     m_shortcutSettings = nullptr;
     delete m_toolSettings;
     m_toolSettings = nullptr;
-    delete m_mimeTypeSettings;
-    m_mimeTypeSettings = nullptr;
     delete m_systemEditor;
     m_systemEditor = nullptr;
     delete m_printer;
@@ -1497,7 +1493,7 @@ ICorePrivate::~ICorePrivate()
 void ICore::extensionsInitialized()
 {
     EditorManagerPrivate::extensionsInitialized();
-    MimeTypeSettings::restoreSettings();
+    setupMimeTypeSettings(d);
     d->m_windowSupport = new WindowSupport(d->m_mainwindow, Context("Core.MainWindow"));
     d->m_windowSupport->setCloseActionEnabled(false);
     OutputPaneManager::initialize();
diff --git a/src/plugins/coreplugin/mimetypesettings.cpp b/src/plugins/coreplugin/mimetypesettings.cpp
index c2bf8202ea4..9e42f62930f 100644
--- a/src/plugins/coreplugin/mimetypesettings.cpp
+++ b/src/plugins/coreplugin/mimetypesettings.cpp
@@ -5,6 +5,7 @@
 
 #include "coreconstants.h"
 #include "coreplugintr.h"
+#include "dialogs/ioptionspage.h"
 #include "editormanager/ieditorfactory.h"
 #include "editormanager/ieditorfactory_p.h"
 #include "icore.h"
@@ -767,6 +768,19 @@ void MimeTypeSettingsPrivate::applyUserModifiedMimeTypes(const UserMimeTypeHash
 
 // MimeTypeSettingsPage
 
+class MimeTypeSettings final : public IOptionsPage
+{
+public:
+    MimeTypeSettings();
+
+    ~MimeTypeSettings() final { delete d; }
+
+    QStringList keywords() const final;
+
+private:
+    MimeTypeSettingsPrivate *d;
+};
+
 MimeTypeSettings::MimeTypeSettings()
     : d(new MimeTypeSettingsPrivate)
 {
@@ -776,11 +790,6 @@ MimeTypeSettings::MimeTypeSettings()
     setWidgetCreator([this] { return new MimeTypeSettingsWidget(d); });
 }
 
-MimeTypeSettings::~MimeTypeSettings()
-{
-    delete d;
-}
-
 QStringList MimeTypeSettings::keywords() const
 {
     return {
@@ -795,14 +804,6 @@ QStringList MimeTypeSettings::keywords() const
     };
 }
 
-void MimeTypeSettings::restoreSettings()
-{
-    MimeTypeSettingsPrivate::UserMimeTypeHash mimetypes
-        = MimeTypeSettingsPrivate::readUserModifiedMimeTypes();
-    MimeTypeSettingsPrivate::m_userModifiedMimeTypes = mimetypes;
-    Utils::addMimeInitializer([mimetypes] { registerUserModifiedMimeTypes(mimetypes); });
-}
-
 QWidget *MimeEditorDelegate::createEditor(QWidget *parent,
                                           const QStyleOptionViewItem &option,
                                           const QModelIndex &index) const
@@ -836,4 +837,15 @@ void MimeEditorDelegate::setModelData(QWidget *editor,
                    int(MimeTypeSettingsModel::Role::DefaultHandler));
 }
 
+void setupMimeTypeSettings(QObject *guard)
+{
+    auto page = new MimeTypeSettings;
+    QObject::connect(guard, &QObject::destroyed, [page] { delete page; });
+
+    MimeTypeSettingsPrivate::UserMimeTypeHash mimetypes
+        = MimeTypeSettingsPrivate::readUserModifiedMimeTypes();
+    MimeTypeSettingsPrivate::m_userModifiedMimeTypes = mimetypes;
+    Utils::addMimeInitializer([mimetypes] { registerUserModifiedMimeTypes(mimetypes); });
+}
+
 } // Core::Internal
diff --git a/src/plugins/coreplugin/mimetypesettings.h b/src/plugins/coreplugin/mimetypesettings.h
index 1080b0746b9..c65d8d0f365 100644
--- a/src/plugins/coreplugin/mimetypesettings.h
+++ b/src/plugins/coreplugin/mimetypesettings.h
@@ -3,24 +3,10 @@
 
 #pragma once
 
-#include "dialogs/ioptionspage.h"
+#include <QObject>
 
 namespace Core::Internal {
 
-class MimeTypeSettingsPrivate;
-
-class MimeTypeSettings : public IOptionsPage
-{
-public:
-    MimeTypeSettings();
-    ~MimeTypeSettings() override;
-
-    QStringList keywords() const override;
-
-    static void restoreSettings();
-
-private:
-    MimeTypeSettingsPrivate *d;
-};
+void setupMimeTypeSettings(QObject *guard);
 
 } // Core::Internal