diff --git a/undetected_chromedriver/__init__.py b/undetected_chromedriver/__init__.py
index 58342f3..cedae06 100644
--- a/undetected_chromedriver/__init__.py
+++ b/undetected_chromedriver/__init__.py
@@ -19,7 +19,7 @@ by UltrafunkAmsterdam (https://github.com/ultrafunkamsterdam)
 """
 
 
-__version__ = "3.1.5r2"
+__version__ = "3.1.5r4"
 
 
 import json
@@ -235,6 +235,7 @@ class Chrome(selenium.webdriver.chrome.webdriver.WebDriver):
         if not options:
             options = ChromeOptions()
 
+
         try:
             if hasattr(options, "_session") and options._session is not None:
                 #  prevent reuse of options,
@@ -260,6 +261,9 @@ class Chrome(selenium.webdriver.chrome.webdriver.WebDriver):
         options.add_argument("--remote-debugging-host=%s" % debug_host)
         options.add_argument("--remote-debugging-port=%s" % debug_port)
 
+        if user_data_dir:
+            options.add_argument('--user-data-dir=%s' % user_data_dir)
+
         language, keep_user_data_dir = None, bool(user_data_dir)
 
         # see if a custom user profile is specified in options
@@ -355,6 +359,9 @@ class Chrome(selenium.webdriver.chrome.webdriver.WebDriver):
             or divmod(logging.getLogger().getEffectiveLevel(), 10)[0]
         )
 
+        if hasattr(options, 'handle_prefs'):
+            options.handle_prefs(user_data_dir)
+
         # fix exit_type flag to prevent tab-restore nag
         try:
             with open(
diff --git a/undetected_chromedriver/options.py b/undetected_chromedriver/options.py
index d6f8b8f..f262319 100644
--- a/undetected_chromedriver/options.py
+++ b/undetected_chromedriver/options.py
@@ -2,7 +2,9 @@
 # this module is part of undetected_chromedriver
 
 
+import json
 import os
+
 from selenium.webdriver.chromium.options import ChromiumOptions as _ChromiumOptions
 
 
@@ -29,6 +31,38 @@ class ChromeOptions(_ChromiumOptions):
         apath = os.path.abspath(path)
         self._user_data_dir = os.path.normpath(apath)
 
+    @staticmethod
+    def _undot_key(key, value):
+        """turn a (dotted key, value) into a proper nested dict"""
+        if "." in key:
+            key, rest = key.split(".", 1)
+            value = ChromeOptions._undot_key(rest, value)
+        return {key: value}
+
+    def handle_prefs(self, user_data_dir):
+        prefs = self.experimental_options.get("prefs")
+        if prefs:
+
+            user_data_dir = user_data_dir or self._user_data_dir
+            default_path = os.path.join(user_data_dir, "Default")
+            os.makedirs(default_path, exist_ok=True)
+
+            # undot prefs dict keys
+            undot_prefs = {}
+            for key, value in prefs.items():
+                undot_prefs.update(self._undot_key(key, value))
+
+            prefs_file = os.path.join(default_path, "Preferences")
+            if os.path.exists(prefs_file):
+                with open(prefs_file, encoding="latin1", mode="r") as f:
+                    undot_prefs.update(json.load(f))
+
+            with open(prefs_file, encoding="latin1", mode="w") as f:
+                json.dump(undot_prefs, f)
+
+            # remove the experimental_options to avoid an error
+            del self._experimental_options["prefs"]
+
     @classmethod
     def from_options(cls, options):
         o = cls()