diff --git a/src/base/preferences.cpp b/src/base/preferences.cpp
index 439226b96..de5845fe3 100644
--- a/src/base/preferences.cpp
+++ b/src/base/preferences.cpp
@@ -2067,6 +2067,19 @@ void Preferences::setAddNewTorrentDialogSavePathHistoryLength(const int value)
     setValue(u"AddNewTorrentDialog/SavePathHistoryLength"_s, clampedValue);
 }
 
+bool Preferences::isAddNewTorrentDialogAttached() const
+{
+    return value(u"AddNewTorrentDialog/Attached"_s, false);
+}
+
+void Preferences::setAddNewTorrentDialogAttached(const bool attached)
+{
+    if (attached == isAddNewTorrentDialogAttached())
+        return;
+
+    setValue(u"AddNewTorrentDialog/Attached"_s, attached);
+}
+
 void Preferences::apply()
 {
     if (SettingsStorage::instance()->save())
diff --git a/src/base/preferences.h b/src/base/preferences.h
index 8a4d23300..bfe53d150 100644
--- a/src/base/preferences.h
+++ b/src/base/preferences.h
@@ -435,6 +435,8 @@ public:
     void setAddNewTorrentDialogTopLevel(bool value);
     int addNewTorrentDialogSavePathHistoryLength() const;
     void setAddNewTorrentDialogSavePathHistoryLength(int value);
+    bool isAddNewTorrentDialogAttached() const;
+    void setAddNewTorrentDialogAttached(bool attached);
 
 public slots:
     void setStatusFilterState(bool checked);
diff --git a/src/gui/advancedsettings.cpp b/src/gui/advancedsettings.cpp
index 75d779909..b5a56f936 100644
--- a/src/gui/advancedsettings.cpp
+++ b/src/gui/advancedsettings.cpp
@@ -98,6 +98,7 @@ namespace
         ENABLE_SPEED_WIDGET,
 #ifndef Q_OS_MACOS
         ENABLE_ICONS_IN_MENUS,
+        USE_ATTACHED_ADD_NEW_TORRENT_DIALOG,
 #endif
         // embedded tracker
         TRACKER_STATUS,
@@ -332,6 +333,7 @@ void AdvancedSettings::saveAdvancedSettings() const
     pref->setSpeedWidgetEnabled(m_checkBoxSpeedWidgetEnabled.isChecked());
 #ifndef Q_OS_MACOS
     pref->setIconsInMenusEnabled(m_checkBoxIconsInMenusEnabled.isChecked());
+    pref->setAddNewTorrentDialogAttached(m_checkBoxAttachedAddNewTorrentDialog.isChecked());
 #endif
 
     // Tracker
@@ -866,6 +868,9 @@ void AdvancedSettings::loadAdvancedSettings()
     // Enable icons in menus
     m_checkBoxIconsInMenusEnabled.setChecked(pref->iconsInMenusEnabled());
     addRow(ENABLE_ICONS_IN_MENUS, tr("Enable icons in menus"), &m_checkBoxIconsInMenusEnabled);
+
+    m_checkBoxAttachedAddNewTorrentDialog.setChecked(pref->isAddNewTorrentDialogAttached());
+    addRow(USE_ATTACHED_ADD_NEW_TORRENT_DIALOG, tr("Attach \"Add new torrent\" dialog to main window"), &m_checkBoxAttachedAddNewTorrentDialog);
 #endif
     // Tracker State
     m_checkBoxTrackerStatus.setChecked(session->isTrackerEnabled());
diff --git a/src/gui/advancedsettings.h b/src/gui/advancedsettings.h
index f89a43dd1..2305e830a 100644
--- a/src/gui/advancedsettings.h
+++ b/src/gui/advancedsettings.h
@@ -108,6 +108,7 @@ private:
 
 #ifndef Q_OS_MACOS
     QCheckBox m_checkBoxIconsInMenusEnabled;
+    QCheckBox m_checkBoxAttachedAddNewTorrentDialog;
 #endif
 
 #if defined(Q_OS_MACOS) || defined(Q_OS_WIN)
diff --git a/src/gui/guiaddtorrentmanager.cpp b/src/gui/guiaddtorrentmanager.cpp
index d1c733073..9bcff9863 100644
--- a/src/gui/guiaddtorrentmanager.cpp
+++ b/src/gui/guiaddtorrentmanager.cpp
@@ -225,12 +225,19 @@ bool GUIAddTorrentManager::processTorrent(const QString &source
     if (!hasMetadata)
         btSession()->downloadMetadata(torrentDescr);
 
+#ifdef Q_OS_MACOS
+    const bool attached = false;
+#else
+    const bool attached = Preferences::instance()->isAddNewTorrentDialogAttached();
+#endif
+
     // By not setting a parent to the "AddNewTorrentDialog", all those dialogs
     // will be displayed on top and will not overlap with the main window.
-    auto *dlg = new AddNewTorrentDialog(torrentDescr, params, nullptr);
+    auto *dlg = new AddNewTorrentDialog(torrentDescr, params, (attached ? app()->mainWindow() : nullptr));
     // Qt::Window is required to avoid showing only two dialog on top (see #12852).
     // Also improves the general convenience of adding multiple torrents.
-    dlg->setWindowFlags(Qt::Window);
+    if (!attached)
+        dlg->setWindowFlags(Qt::Window);
 
     dlg->setAttribute(Qt::WA_DeleteOnClose);
     m_dialogs[infoHash] = dlg;