diff --git a/DrissionPage/__init__.py b/DrissionPage/__init__.py
index 1774967..b4bb936 100644
--- a/DrissionPage/__init__.py
+++ b/DrissionPage/__init__.py
@@ -14,4 +14,4 @@ from ._pages.chromium_page import ChromiumPage
 from ._pages.mix_page import MixPage
 from ._pages.mix_page import MixPage as WebPage
 
-__version__ = '4.1.0.0b14'
+__version__ = '4.1.0.0b15'
diff --git a/DrissionPage/_base/browser.py b/DrissionPage/_base/browser.py
index a22810e..b3be05e 100644
--- a/DrissionPage/_base/browser.py
+++ b/DrissionPage/_base/browser.py
@@ -87,6 +87,7 @@ class Chromium(object):
             connect_browser(self._chromium_options)
             s = Session()
             s.trust_env = False
+            s.keep_alive = False
             ws = s.get(f'http://{self._chromium_options.address}/json/version', headers={'Connection': 'close'})
             self.id = ws.json()['webSocketDebuggerUrl'].split('/')[-1]
             self._driver = BrowserDriver(self.id, 'browser', self.address, self)
@@ -400,10 +401,11 @@ class Chromium(object):
         self._driver.set_callback('Target.targetDestroyed', self._onTargetDestroyed)
         self._driver.set_callback('Target.targetCreated', self._onTargetCreated)
 
-    def quit(self, timeout=5, force=False):
+    def quit(self, timeout=5, force=False, del_data=False):
         """关闭浏览器
         :param timeout: 等待浏览器关闭超时时间（秒）
         :param force: 是否立刻强制终止进程
+        :param del_data: 是否删除用户文件夹
         :return: None
         """
         try:
@@ -417,39 +419,43 @@ class Chromium(object):
             for driver in tab:
                 driver.stop()
 
-        if not force:
-            return
-
-        try:
-            pids = [pid['id'] for pid in self._run_cdp('SystemInfo.getProcessInfo')['processInfo']]
-        except:
-            return
-
-        from psutil import Process
-        for pid in pids:
+        if force:
+            pids = None
             try:
-                Process(pid).kill()
+                pids = [pid['id'] for pid in self._run_cdp('SystemInfo.getProcessInfo')['processInfo']]
             except:
                 pass
 
-        from os import popen
-        from platform import system
-        end_time = perf_counter() + timeout
-        while perf_counter() < end_time:
-            ok = True
-            for pid in pids:
-                txt = f'tasklist | findstr {pid}' if system().lower() == 'windows' else f'ps -ef | grep {pid}'
-                p = popen(txt)
-                sleep(.05)
-                try:
-                    if f'  {pid} ' in p.read():
-                        ok = False
-                        break
-                except TypeError:
-                    pass
+            if pids:
+                from psutil import Process
+                for pid in pids:
+                    try:
+                        Process(pid).kill()
+                    except:
+                        pass
 
-            if ok:
-                break
+                from os import popen
+                from platform import system
+                end_time = perf_counter() + timeout
+                while perf_counter() < end_time:
+                    ok = True
+                    for pid in pids:
+                        txt = f'tasklist | findstr {pid}' if system().lower() == 'windows' else f'ps -ef | grep {pid}'
+                        p = popen(txt)
+                        sleep(.05)
+                        try:
+                            if f'  {pid} ' in p.read():
+                                ok = False
+                                break
+                        except TypeError:
+                            pass
+
+                    if ok:
+                        break
+
+        if del_data and not self._chromium_options.is_auto_port and self._chromium_options.user_data_path:
+            path = Path(self._chromium_options.user_data_path)
+            rmtree(path, True)
 
     def _get_driver(self, tab_id, owner=None):
         """新建并返回指定tab id的Driver
@@ -555,6 +561,7 @@ def run_browser(chromium_options):
     try:
         s = Session()
         s.trust_env = False
+        s.keep_alive = False
         ws = s.get(f'http://{chromium_options.address}/json/version', headers={'Connection': 'close'})
         if not ws:
             raise BrowserConnectError('\n浏览器连接失败，请确认浏览器是否启动。')
diff --git a/DrissionPage/_base/browser.pyi b/DrissionPage/_base/browser.pyi
index fa906ed..9bd107c 100644
--- a/DrissionPage/_base/browser.pyi
+++ b/DrissionPage/_base/browser.pyi
@@ -162,6 +162,6 @@ class Chromium(object):
 
     def _onTargetDestroyed(self, **kwargs) -> None: ...
 
-    def quit(self, timeout: float = 5, force: bool = False) -> None: ...
+    def quit(self, timeout: float = 5, force: bool = False, del_data: bool = False) -> None: ...
 
     def _on_disconnect(self) -> None: ...
diff --git a/DrissionPage/_base/driver.py b/DrissionPage/_base/driver.py
index c95485a..8a75f01 100644
--- a/DrissionPage/_base/driver.py
+++ b/DrissionPage/_base/driver.py
@@ -285,6 +285,7 @@ class BrowserDriver(Driver):
         super().__init__(tab_id, tab_type, address, owner)
         self._control_session = Session()
         self._control_session.trust_env = False
+        self._control_session.keep_alive = False
 
     def __repr__(self):
         return f'<BrowserDriver {self.id}>'
diff --git a/DrissionPage/_functions/browser.py b/DrissionPage/_functions/browser.py
index 9958bf0..895bd94 100644
--- a/DrissionPage/_functions/browser.py
+++ b/DrissionPage/_functions/browser.py
@@ -194,6 +194,7 @@ def test_connect(ip, port, timeout=30):
     end_time = perf_counter() + timeout
     s = Session()
     s.trust_env = False
+    s.keep_alive = False
     while perf_counter() < end_time:
         try:
             r = s.get(f'http://{ip}:{port}/json', timeout=10, headers={'Connection': 'close'})
diff --git a/DrissionPage/_pages/chromium_page.py b/DrissionPage/_pages/chromium_page.py
index d0ddee4..ef4ee2f 100644
--- a/DrissionPage/_pages/chromium_page.py
+++ b/DrissionPage/_pages/chromium_page.py
@@ -172,13 +172,14 @@ class ChromiumPage(ChromiumBase):
         """
         self.browser.close_tabs(tabs_or_ids=tabs_or_ids or self.tab_id, others=others)
 
-    def quit(self, timeout=5, force=True):
+    def quit(self, timeout=5, force=True, del_data=False):
         """关闭浏览器
         :param timeout: 等待浏览器关闭超时时间（秒）
         :param force: 关闭超时是否强制终止进程
+        :param del_data: 是否删除用户文件夹
         :return: None
         """
-        self.browser.quit(timeout, force)
+        self.browser.quit(timeout, force, del_data=del_data)
 
     def _on_disconnect(self):
         """浏览器退出时执行"""
diff --git a/DrissionPage/_pages/chromium_page.pyi b/DrissionPage/_pages/chromium_page.pyi
index 8178e46..992ced3 100644
--- a/DrissionPage/_pages/chromium_page.pyi
+++ b/DrissionPage/_pages/chromium_page.pyi
@@ -111,6 +111,6 @@ class ChromiumPage(ChromiumBase):
     def close_tabs(self, tabs_or_ids: Union[str, ChromiumTab, List[Union[str, ChromiumTab]],
     Tuple[Union[str, ChromiumTab]]] = None, others: bool = False) -> None: ...
 
-    def quit(self, timeout: float = 5, force: bool = True) -> None: ...
+    def quit(self, timeout: float = 5, force: bool = True, del_data: bool = False) -> None: ...
 
     def _on_disconnect(self) -> None: ...