diff --git a/DrissionPage/__init__.py b/DrissionPage/__init__.py
index d4d0162..37b3836 100644
--- a/DrissionPage/__init__.py
+++ b/DrissionPage/__init__.py
@@ -12,4 +12,4 @@ from ._pages.chromium_page import ChromiumPage
 from ._pages.session_page import SessionPage
 from ._pages.web_page import WebPage
 
-__version__ = '4.1.0.4'
+__version__ = '4.1.0.5'
diff --git a/DrissionPage/_base/chromium.py b/DrissionPage/_base/chromium.py
index 3eeb268..70a054a 100644
--- a/DrissionPage/_base/chromium.py
+++ b/DrissionPage/_base/chromium.py
@@ -307,7 +307,7 @@ class Chromium(object):
         if tab:
             kwargs['browserContextId'] = tab
 
-        if self.states.is_incognito():
+        if self.states.is_incognito:
             return _new_tab_by_js(self, url, obj, new_window)
         else:
             try:
diff --git a/DrissionPage/_functions/tools.py b/DrissionPage/_functions/tools.py
index 92183d3..e99a62c 100644
--- a/DrissionPage/_functions/tools.py
+++ b/DrissionPage/_functions/tools.py
@@ -80,8 +80,8 @@ def clean_folder(folder_path, ignore=None):
                 rmtree(f, True)
 
 
-def show_or_hide_browser(page, hide=True):
-    if not page.browser.address.startswith(('127.0.0.1', 'localhost')):
+def show_or_hide_browser(tab, hide=True):
+    if not tab.browser.address.startswith(('127.0.0.1', 'localhost')):
         return
 
     if system().lower() != 'windows':
@@ -93,10 +93,10 @@ def show_or_hide_browser(page, hide=True):
     except ImportError:
         raise ImportError('请先安装：pip install pypiwin32')
 
-    pid = page._page.process_id
+    pid = tab.browser.process_id
     if not pid:
         return None
-    hds = get_hwnds_from_pid(pid, page.title)
+    hds = get_hwnds_from_pid(pid, tab.title)
     sw = SW_HIDE if hide else SW_SHOW
     for hd in hds:
         ShowWindow(hd, sw)
diff --git a/DrissionPage/_functions/tools.pyi b/DrissionPage/_functions/tools.pyi
index 8a7c3c8..2623bd8 100644
--- a/DrissionPage/_functions/tools.pyi
+++ b/DrissionPage/_functions/tools.pyi
@@ -53,9 +53,9 @@ def clean_folder(folder_path: Union[str, Path], ignore: Union[tuple, list] = Non
     ...
 
 
-def show_or_hide_browser(page: ChromiumBase, hide: bool = True) -> None:
+def show_or_hide_browser(tab: ChromiumBase, hide: bool = True) -> None:
     """执行显示或隐藏浏览器窗口
-    :param page: ChromePage对象
+    :param tab: ChromiumTab对象
     :param hide: 是否隐藏
     :return: None
     """
diff --git a/DrissionPage/_units/setter.pyi b/DrissionPage/_units/setter.pyi
index b2890b9..b1f9e97 100644
--- a/DrissionPage/_units/setter.pyi
+++ b/DrissionPage/_units/setter.pyi
@@ -243,6 +243,9 @@ class BrowserSetter(BrowserBaseSetter):
         """返回用于设置cookies的对象"""
         ...
 
+    @property
+    def window(self)->WindowSetter:...
+
     def auto_handle_alert(self,
                           on_off: bool = True,
                           accept: bool = True) -> None:
diff --git a/DrissionPage/_units/states.py b/DrissionPage/_units/states.py
index 7cff31c..456fa40 100644
--- a/DrissionPage/_units/states.py
+++ b/DrissionPage/_units/states.py
@@ -94,18 +94,22 @@ class BrowserStates(object):
         self._browser = browser
         self._incognito = None
 
+    @property
     def is_alive(self):
         return self._browser._driver.is_running
 
+    @property
     def is_headless(self):
         return self._browser._is_headless
 
+    @property
     def is_existed(self):
         return self._browser._is_exists
 
+    @property
     def is_incognito(self):
         if self._incognito is None:
-            self._incognito = str(self._browser._run_cdp('Browser.getHistograms')).count('Incognito') > 1
+            self._incognito = "'Browser.WindowCount.Incognito'" in str(self._browser._run_cdp('Browser.getHistograms'))
         return self._incognito
 
 
diff --git a/DrissionPage/_units/states.pyi b/DrissionPage/_units/states.pyi
index dcf4fe9..f31463c 100644
--- a/DrissionPage/_units/states.pyi
+++ b/DrissionPage/_units/states.pyi
@@ -103,18 +103,22 @@ class BrowserStates(object):
         """
         ...
 
+    @property
     def is_alive(self) -> bool:
         """返回浏览器是否仍可用"""
         ...
 
+    @property
     def is_headless(self) -> bool:
         """返回浏览器是否无头模式"""
         ...
 
+    @property
     def is_existed(self) -> bool:
         """返回浏览器是否接管的"""
         ...
 
+    @property
     def is_incognito(self) -> bool:
         """返回浏览器是否无痕模式"""
         ...