diff --git a/src/tribler/gui/tests/test_tribler_window.py b/src/tribler/gui/tests/test_tribler_window.py
new file mode 100644
index 00000000000..297919aece1
--- /dev/null
+++ b/src/tribler/gui/tests/test_tribler_window.py
@@ -0,0 +1,29 @@
+from unittest.mock import Mock, patch
+
+import pytest
+from PyQt5.QtWidgets import QFileDialog
+
+from tribler.gui.tribler_window import TriblerWindow
+
+
+# pylint: disable=redefined-outer-name
+@pytest.fixture
+def tribler_window():
+    """ Create mocked TriblerWindow instance"""
+    with patch('tribler.gui.tribler_window.TriblerWindow.__init__', Mock(return_value=None)):
+        window = TriblerWindow(Mock(), Mock(), Mock(), Mock())
+        window.pending_uri_requests = []
+        return window
+
+
+def test_on_add_torrent_browse_file(tribler_window: TriblerWindow):
+    """ Test that the on_add_torrent_browse_file method works correctly"""
+    tribler_window.raise_window = Mock()
+    tribler_window.process_uri_request = Mock()
+
+    with patch.object(QFileDialog, 'getOpenFileNames', Mock(return_value=['.'])) as patched_getOpenFileNames:
+        tribler_window.on_add_torrent_browse_file()
+
+    assert tribler_window.raise_window.called
+    assert patched_getOpenFileNames.called
+    assert tribler_window.process_uri_request.called
diff --git a/src/tribler/gui/tribler_window.py b/src/tribler/gui/tribler_window.py
index 0d67e65d7d3..6cd41adc1d8 100644
--- a/src/tribler/gui/tribler_window.py
+++ b/src/tribler/gui/tribler_window.py
@@ -83,7 +83,6 @@
 from tribler.gui.utilities import (
     connect,
     create_api_key,
-    disconnect,
     format_api_key,
     get_font_path,
     get_gui_setting,
@@ -91,7 +90,6 @@
     get_ui_file_path,
     is_dir_writable,
     set_api_key,
-    show_message_box,
     tr,
 )
 from tribler.gui.widgets.instanttooltipstyle import InstantTooltipStyle
@@ -681,13 +679,16 @@ def on_create_torrent_updates(self, update_dict):
 
     def on_add_torrent_browse_file(self, *_):
         self.raise_window()  # For the case when the action is triggered by tray icon
-        filenames = QFileDialog.getOpenFileNames(
+        filenames, *_ = QFileDialog.getOpenFileNames(
             self, tr("Please select the .torrent file"), QDir.homePath(), tr("Torrent files%s") % " (*.torrent)"
         )
-        if len(filenames[0]) > 0:
-            for filename in filenames[0]:
-                self.pending_uri_requests.append(Path(filename).as_uri())
-            self.process_uri_request()
+        if not filenames:
+            return
+
+        for filename in filenames:
+            uri = Path(filename).resolve().as_uri()
+            self.pending_uri_requests.append(uri)
+        self.process_uri_request()
 
     def start_download_from_uri(self, uri):
         uri = uri.decode('utf-8') if isinstance(uri, bytes) else uri