diff --git a/seleniumbase/__version__.py b/seleniumbase/__version__.py
index 5e17db8a265..47e541ebfb1 100755
--- a/seleniumbase/__version__.py
+++ b/seleniumbase/__version__.py
@@ -1,2 +1,2 @@
 # seleniumbase package
-__version__ = "4.37.11"
+__version__ = "4.37.12"
diff --git a/seleniumbase/core/browser_launcher.py b/seleniumbase/core/browser_launcher.py
index a23496ba84c..34c0ded00a1 100644
--- a/seleniumbase/core/browser_launcher.py
+++ b/seleniumbase/core/browser_launcher.py
@@ -519,16 +519,6 @@ def uc_open_with_cdp_mode(driver, url=None, **kwargs):
     import asyncio
     from seleniumbase.undetected.cdp_driver import cdp_util
 
-    if (
-        hasattr(driver, "_is_using_cdp")
-        and driver._is_using_cdp
-        and hasattr(driver, "cdp")
-        and driver.cdp
-    ):
-        # CDP Mode was already initialized
-        driver.disconnect()
-        driver.cdp.open(url, **kwargs)
-        return
     current_url = None
     try:
         current_url = driver.current_url
@@ -553,6 +543,23 @@ def uc_open_with_cdp_mode(driver, url=None, **kwargs):
     if url_protocol not in ["about", "data", "chrome"]:
         safe_url = False
 
+    if (
+        hasattr(driver, "_is_using_cdp")
+        and driver._is_using_cdp
+        and hasattr(driver, "cdp")
+        and driver.cdp
+        and hasattr(driver.cdp, "loop")
+    ):
+        # CDP Mode was already initialized
+        driver.cdp.open(url, **kwargs)
+        if not safe_url:
+            time.sleep(constants.UC.CDP_MODE_OPEN_WAIT)
+            if IS_WINDOWS:
+                time.sleep(constants.UC.EXTRA_WINDOWS_WAIT)
+        else:
+            time.sleep(0.012)
+        return
+
     headless = False
     headed = None
     xvfb = None
diff --git a/seleniumbase/plugins/sb_manager.py b/seleniumbase/plugins/sb_manager.py
index b56a8c585f9..45cd307e4cd 100644
--- a/seleniumbase/plugins/sb_manager.py
+++ b/seleniumbase/plugins/sb_manager.py
@@ -1369,23 +1369,18 @@ def SB(
                     "%s%s%s%s%s"
                     % (c1, left_space, end_text, right_space, cr)
                 )
-        python3_12_or_newer = (sys.version_info >= (3, 12))
-        if undetectable:
+        if undetectable and hasattr(sb, "_drivers_browser_map"):
             import asyncio
-            if not python3_12_or_newer and hasattr(sb_config, "_cdp_aclose"):
-                with suppress(Exception):
-                    loop = asyncio.get_event_loop()
-                    asyncio.set_event_loop(loop)
-                    loop.run_until_complete(sb_config._cdp_aclose())
-            if python3_12_or_newer and hasattr(sb, "_drivers_browser_map"):
-                for driver in sb._drivers_browser_map.keys():
-                    if hasattr(driver, "cdp") and driver.cdp:
-                        asyncio.set_event_loop(driver.cdp.loop)
-                        tasks = [tab.aclose() for tab in driver.cdp.get_tabs()]
-                        tasks.append(driver.cdp.driver.connection.aclose())
-                        driver.cdp.loop.run_until_complete(
-                            asyncio.gather(*tasks)
-                        )
+            for driver in sb._drivers_browser_map.keys():
+                if (
+                    hasattr(driver, "cdp")
+                    and driver.cdp
+                    and hasattr(driver.cdp, "loop")
+                ):
+                    asyncio.set_event_loop(driver.cdp.loop)
+                    tasks = [tab.aclose() for tab in driver.cdp.get_tabs()]
+                    tasks.append(driver.cdp.driver.connection.aclose())
+                    driver.cdp.loop.run_until_complete(asyncio.gather(*tasks))
                     driver.cdp.loop.close()
         gc.collect()
     if test and test_name and not test_passed and raise_test_failure:
diff --git a/seleniumbase/undetected/cdp_driver/connection.py b/seleniumbase/undetected/cdp_driver/connection.py
index 5b146526691..8bcdc82ff36 100644
--- a/seleniumbase/undetected/cdp_driver/connection.py
+++ b/seleniumbase/undetected/cdp_driver/connection.py
@@ -19,7 +19,6 @@
 )
 import websockets
 from websockets.protocol import State
-from seleniumbase import config as sb_config
 from . import cdp_util as util
 import mycdp as cdp
 import mycdp.network
@@ -271,11 +270,10 @@ async def aopen(self, **kw):
                     max_size=MAX_SIZE,
                 )
                 self.listener = Listener(self)
-                sb_config._cdp_aclose = self.aclose
             except (Exception,) as e:
                 logger.debug("Exception during opening of websocket: %s", e)
                 if self.listener:
-                    self.listener.cancel()
+                    await self.listener.cancel()
                 raise
         if not self.listener or not self.listener.running:
             self.listener = Listener(self)
@@ -300,7 +298,7 @@ async def aclose(self):
                     self.websocket_url
                 )
             if self.listener and self.listener.running:
-                self.listener.cancel()
+                await self.listener.cancel()
                 self.enabled_domains.clear()
             logger.debug(
                 "\n❌ Closed websocket connection to %s", self.websocket_url
@@ -446,7 +444,6 @@ async def send(
             if not _is_update:
                 await self._register_handlers()
             await self.websocket.send(tx.message)
-            sb_config._cdp_aclose = self.aclose
             try:
                 return await tx
             except ProtocolException as e:
@@ -557,9 +554,13 @@ def time_before_considered_idle(self):
     def time_before_considered_idle(self, seconds: Union[int, float]):
         self._time_before_considered_idle = seconds
 
-    def cancel(self):
+    async def cancel(self):
         if self.task and not self.task.cancelled():
             self.task.cancel()
+            try:
+                await self.task
+            except asyncio.CancelledError:
+                pass
 
     @property
     def running(self):