diff --git a/seleniumbase/core/browser_launcher.py b/seleniumbase/core/browser_launcher.py
index 5d32db78994..a2a695d2ef3 100644
--- a/seleniumbase/core/browser_launcher.py
+++ b/seleniumbase/core/browser_launcher.py
@@ -1423,7 +1423,9 @@ def _uc_gui_handle_captcha_(driver, frame="iframe", ctype=None):
             IS_WINDOWS
             and hasattr(pyautogui, "getActiveWindowTitle")
         ):
-            py_a_g_title = pyautogui.getActiveWindowTitle()
+            # Fix for NoneType error: When getActiveWindowTitle() returns None,
+            # default to empty string so startswith() check doesn't fail
+            py_a_g_title = pyautogui.getActiveWindowTitle() or ""
             window_title = driver.get_title()
             if not py_a_g_title.startswith(window_title):
                 window_rect = driver.get_window_rect()