diff --git a/requirements.txt b/requirements.txt
index a85f6e42ec9..9cddf0cc5c3 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ pygments==2.17.2;python_version<"3.8"
 pygments==2.18.0;python_version>="3.8"
 pyreadline3==3.4.1;platform_system=="Windows"
 tabcompleter==1.3.0
-pdbp==1.5.0
+pdbp==1.5.1
 colorama==0.4.6
 pyotp==2.9.0
 python-xlib==0.33;platform_system=="Linux"
diff --git a/seleniumbase/__version__.py b/seleniumbase/__version__.py
index 0f4cb9997d3..1411c85c750 100755
--- a/seleniumbase/__version__.py
+++ b/seleniumbase/__version__.py
@@ -1,2 +1,2 @@
 # seleniumbase package
-__version__ = "4.28.1"
+__version__ = "4.28.2"
diff --git a/seleniumbase/core/browser_launcher.py b/seleniumbase/core/browser_launcher.py
index 0d21607aced..0cfde0b2a07 100644
--- a/seleniumbase/core/browser_launcher.py
+++ b/seleniumbase/core/browser_launcher.py
@@ -389,7 +389,9 @@ def uc_special_open_if_cf(
                 driver.execute_script('window.open("%s","_blank");' % url)
                 driver.close()
                 if mobile_emulator:
-                    driver.switch_to.window(driver.window_handles[-1])
+                    page_actions.switch_to_window(
+                        driver, driver.window_handles[-1], 2
+                    )
                     uc_metrics = {}
                     if (
                         isinstance(device_width, int)
@@ -419,7 +421,9 @@ def uc_special_open_if_cf(
                     except Exception:
                         pass
             if not mobile_emulator:
-                driver.switch_to.window(driver.window_handles[-1])
+                page_actions.switch_to_window(
+                    driver, driver.window_handles[-1], 2
+                )
         else:
             driver.default_get(url)  # The original one
     else:
@@ -450,7 +454,7 @@ def uc_open_with_tab(driver, url):
         with driver:
             driver.execute_script('window.open("%s","_blank");' % url)
             driver.close()
-        driver.switch_to.window(driver.window_handles[-1])
+        page_actions.switch_to_window(driver, driver.window_handles[-1], 2)
     else:
         driver.default_get(url)  # The original one
     return None
@@ -476,10 +480,14 @@ def uc_open_with_reconnect(driver, url, reconnect_time=None):
             driver.reconnect(reconnect_time)
             time.sleep(0.004)
             try:
-                driver.switch_to.window(driver.window_handles[-1])
+                page_actions.switch_to_window(
+                    driver, driver.window_handles[-1], 2
+                )
             except InvalidSessionIdException:
                 time.sleep(0.05)
-                driver.switch_to.window(driver.window_handles[-1])
+                page_actions.switch_to_window(
+                    driver, driver.window_handles[-1], 2
+                )
     else:
         driver.default_get(url)  # The original one
     return None
@@ -546,17 +554,17 @@ def uc_click(
             driver.reconnect(reconnect_time)
 
 
-def verify_pyautogui_has_a_headed_browser():
+def verify_pyautogui_has_a_headed_browser(driver):
     """PyAutoGUI requires a headed browser so that it can
     focus on the correct element when performing actions."""
-    if sb_config.headless or sb_config.headless2:
+    if hasattr(driver, "_is_hidden") and driver._is_hidden:
         raise Exception(
             "PyAutoGUI can't be used in headless mode!"
         )
 
 
-def install_pyautogui_if_missing():
-    verify_pyautogui_has_a_headed_browser()
+def install_pyautogui_if_missing(driver):
+    verify_pyautogui_has_a_headed_browser(driver)
     pip_find_lock = fasteners.InterProcessLock(
         constants.PipInstall.FINDLOCK
     )
@@ -608,7 +616,7 @@ def get_configured_pyautogui(pyautogui_copy):
 
 
 def uc_gui_press_key(driver, key):
-    install_pyautogui_if_missing()
+    install_pyautogui_if_missing(driver)
     import pyautogui
     pyautogui = get_configured_pyautogui(pyautogui)
     gui_lock = fasteners.InterProcessLock(
@@ -619,7 +627,7 @@ def uc_gui_press_key(driver, key):
 
 
 def uc_gui_press_keys(driver, keys):
-    install_pyautogui_if_missing()
+    install_pyautogui_if_missing(driver)
     import pyautogui
     pyautogui = get_configured_pyautogui(pyautogui)
     gui_lock = fasteners.InterProcessLock(
@@ -631,7 +639,7 @@ def uc_gui_press_keys(driver, keys):
 
 
 def uc_gui_write(driver, text):
-    install_pyautogui_if_missing()
+    install_pyautogui_if_missing(driver)
     import pyautogui
     pyautogui = get_configured_pyautogui(pyautogui)
     gui_lock = fasteners.InterProcessLock(
@@ -648,7 +656,7 @@ def uc_gui_handle_cf(driver, frame="iframe"):
         and 'aria-label="Cloudflare"' not in source
     ):
         return
-    install_pyautogui_if_missing()
+    install_pyautogui_if_missing(driver)
     import pyautogui
     pyautogui = get_configured_pyautogui(pyautogui)
     gui_lock = fasteners.InterProcessLock(
@@ -664,9 +672,7 @@ def uc_gui_handle_cf(driver, frame="iframe"):
         if not is_in_frame:
             # Make sure the window is on top
             page_actions.switch_to_window(
-                driver,
-                driver.current_window_handle,
-                timeout=settings.SMALL_TIMEOUT,
+                driver, driver.current_window_handle, 2
             )
         if not is_in_frame or needs_switch:
             # Currently not in frame (or nested frame outside CF one)
@@ -1634,10 +1640,6 @@ def get_driver(
     if headless2 and browser_name == constants.Browser.FIREFOX:
         headless2 = False  # Only for Chromium
         headless = True
-    if not hasattr(sb_config, "headless"):
-        sb_config.headless = headless
-    if not hasattr(sb_config, "headless2"):
-        sb_config.headless2 = headless2
     if (
         binary_location
         and isinstance(binary_location, str)
@@ -4035,6 +4037,8 @@ def get_local_driver(
                             driver, *args, **kwargs
                         )
                     )
+                    driver._is_hidden = (headless or headless2)
+                    driver._is_using_uc = True
                     if mobile_emulator:
                         uc_metrics = {}
                         if (
diff --git a/seleniumbase/fixtures/page_actions.py b/seleniumbase/fixtures/page_actions.py
index 9564763388c..6ca81912282 100644
--- a/seleniumbase/fixtures/page_actions.py
+++ b/seleniumbase/fixtures/page_actions.py
@@ -18,6 +18,7 @@
 By.PARTIAL_LINK_TEXT   # "partial link text"
 """
 import codecs
+import fasteners
 import os
 import time
 from selenium.common.exceptions import ElementNotInteractableException
@@ -32,6 +33,7 @@
 from seleniumbase.common.exceptions import LinkTextNotFoundException
 from seleniumbase.common.exceptions import TextNotVisibleException
 from seleniumbase.config import settings
+from seleniumbase.fixtures import constants
 from seleniumbase.fixtures import page_utils
 from seleniumbase.fixtures import shared_utils
 
@@ -1428,6 +1430,18 @@ def switch_to_frame(driver, frame, timeout=settings.SMALL_TIMEOUT):
     timeout_exception(Exception, message)
 
 
+def __switch_to_window(driver, window_handle):
+    if hasattr(driver, "_is_using_uc") and driver._is_using_uc:
+        gui_lock = fasteners.InterProcessLock(
+            constants.MultiBrowser.PYAUTOGUILOCK
+        )
+        with gui_lock:
+            driver.switch_to.window(window_handle)
+    else:
+        driver.switch_to.window(window_handle)
+    return True
+
+
 def switch_to_window(driver, window, timeout=settings.SMALL_TIMEOUT):
     """
     Wait for a window to appear, and switch to it. This should be usable
@@ -1451,7 +1465,7 @@ def switch_to_window(driver, window, timeout=settings.SMALL_TIMEOUT):
             shared_utils.check_if_time_limit_exceeded()
             try:
                 window_handle = driver.window_handles[window]
-                driver.switch_to.window(window_handle)
+                __switch_to_window(driver, window_handle)
                 return True
             except IndexError:
                 now_ms = time.time() * 1000.0
@@ -1472,7 +1486,7 @@ def switch_to_window(driver, window, timeout=settings.SMALL_TIMEOUT):
         for x in range(int(timeout * 10)):
             shared_utils.check_if_time_limit_exceeded()
             try:
-                driver.switch_to.window(window_handle)
+                __switch_to_window(driver, window_handle)
                 return True
             except NoSuchWindowException:
                 now_ms = time.time() * 1000.0
diff --git a/seleniumbase/undetected/__init__.py b/seleniumbase/undetected/__init__.py
index be6f4fb0766..40283f43350 100644
--- a/seleniumbase/undetected/__init__.py
+++ b/seleniumbase/undetected/__init__.py
@@ -278,15 +278,19 @@ def __init__(
                     options.binary_location, *options.arguments
                 )
             else:
-                browser = subprocess.Popen(
-                    [options.binary_location, *options.arguments],
-                    stdin=subprocess.PIPE,
-                    stdout=subprocess.PIPE,
-                    stderr=subprocess.PIPE,
-                    close_fds=IS_POSIX,
-                    creationflags=creationflags,
+                gui_lock = fasteners.InterProcessLock(
+                    constants.MultiBrowser.PYAUTOGUILOCK
                 )
-                self.browser_pid = browser.pid
+                with gui_lock:
+                    browser = subprocess.Popen(
+                        [options.binary_location, *options.arguments],
+                        stdin=subprocess.PIPE,
+                        stdout=subprocess.PIPE,
+                        stderr=subprocess.PIPE,
+                        close_fds=IS_POSIX,
+                        creationflags=creationflags,
+                    )
+                    self.browser_pid = browser.pid
             service_ = None
             log_output = subprocess.PIPE
             if sys.version_info < (3, 8):
diff --git a/setup.py b/setup.py
index 02cd9a60108..5f59c7b9976 100755
--- a/setup.py
+++ b/setup.py
@@ -212,7 +212,7 @@
         'pygments==2.18.0;python_version>="3.8"',
         'pyreadline3==3.4.1;platform_system=="Windows"',
         "tabcompleter==1.3.0",
-        "pdbp==1.5.0",
+        "pdbp==1.5.1",
         'colorama==0.4.6',
         'pyotp==2.9.0',
         'python-xlib==0.33;platform_system=="Linux"',