diff --git a/locales/zh_cn.json b/locales/zh_cn.json
index f56a786..5851b4c 100644
--- a/locales/zh_cn.json
+++ b/locales/zh_cn.json
@@ -640,7 +640,9 @@
         "found_chrome_at": "找到 Chrome: {path}",
         "found_browser_user_data_dir": "找到 {browser} 用户数据目录: {path}",
         "select_profile": "选择要使用的 {browser} 配置文件：",
-        "profile_list": "可用 {browser} 配置文件："
+        "profile_list": "可用 {browser} 配置文件：",
+        "chrome_permissions_fixed": "已修复 Chrome 用户数据目录权限",
+        "chrome_permissions_fix_failed": "修复 Chrome 权限失败: {error}"
     },
     "browser_profile": {
         "title": "浏览器配置文件选择",
diff --git a/oauth_auth.py b/oauth_auth.py
index c30c198..0dcc891 100644
--- a/oauth_auth.py
+++ b/oauth_auth.py
@@ -483,6 +483,25 @@ class OAuthHandler:
             print(f"{Fore.RED}{EMOJI['ERROR']} {self.translator.get('oauth.error_configuring_browser_options', error=str(e)) if self.translator else f'Error configuring browser options: {e}'}{Style.RESET_ALL}")
             raise
 
+    def _fix_chrome_permissions(self, user_data_dir):
+        """Fix permissions for Chrome user data directory"""
+        try:
+            if sys.platform == 'darwin':  # macOS
+                import subprocess
+                import pwd
+                
+                # Get current user
+                current_user = pwd.getpwuid(os.getuid()).pw_name
+                
+                # Fix permissions for Chrome directory
+                chrome_dir = os.path.expanduser('~/Library/Application Support/Google/Chrome')
+                if os.path.exists(chrome_dir):
+                    subprocess.run(['chmod', '-R', 'u+rwX', chrome_dir])
+                    subprocess.run(['chown', '-R', f'{current_user}:staff', chrome_dir])
+                    print(f"{Fore.GREEN}{EMOJI['SUCCESS']} {self.translator.get('oauth.chrome_permissions_fixed') if self.translator else 'Fixed Chrome user data directory permissions'}{Style.RESET_ALL}")
+        except Exception as e:
+            print(f"{Fore.YELLOW}{EMOJI['WARNING']} {self.translator.get('oauth.chrome_permissions_fix_failed', error=str(e)) if self.translator else f'Failed to fix Chrome permissions: {str(e)}'}{Style.RESET_ALL}")
+
     def handle_google_auth(self):
         """Handle Google OAuth authentication"""
         try:
@@ -493,6 +512,9 @@ class OAuthHandler:
                 print(f"{Fore.RED}{EMOJI['ERROR']} {self.translator.get('oauth.browser_failed') if self.translator else 'Browser failed to initialize'}{Style.RESET_ALL}")
                 return False, None
             
+            # Get user data directory for later use
+            user_data_dir = self._get_user_data_directory()
+            
             # Navigate to auth URL
             try:
                 print(f"{Fore.CYAN}{EMOJI['INFO']} {self.translator.get('oauth.navigating_to_authentication_page') if self.translator else 'Navigating to authentication page...'}{Style.RESET_ALL}")
@@ -556,6 +578,8 @@ class OAuthHandler:
                 try:
                     if self.browser:
                         self.browser.quit()
+                        # Fix Chrome permissions after browser is closed
+                        self._fix_chrome_permissions(user_data_dir)
                 except:
                     pass