diff --git a/twitter_scraper/browser.py b/twitter_scraper/browser.py
index c915f04..738e7c5 100644
--- a/twitter_scraper/browser.py
+++ b/twitter_scraper/browser.py
@@ -1,9 +1,9 @@
-"""Browser lifecycle management for TwitterDataScraper."""
+"""""Browser lifecycle management for TwitterDataScraper."""
 
 from __future__ import annotations
 
 import logging
-from typing import Optional
+from typing import Optional, platform
 
 from selenium import webdriver
 from selenium.common.exceptions import WebDriverException
@@ -13,9 +13,9 @@
 from twitter_scraper.config import (
     IMPLICIT_WAIT,
     PAGE_LOAD_TIMEOUT,
-    USER_AGENT,
 )
 
+
 logger = logging.getLogger(__name__)
 
 
@@ -35,7 +35,6 @@ def _create_options(self) -> webdriver.ChromeOptions:
         options = webdriver.ChromeOptions()
         options.add_argument("--disable-notifications")
         options.add_argument("--disable-blink-features=AutomationControlled")
-        options.add_argument(f"--user-agent={USER_AGENT}")
         options.add_experimental_option(
             "excludeSwitches", ["enable-logging", "enable-automation"]
         )
@@ -50,6 +49,14 @@ def _create_options(self) -> webdriver.ChromeOptions:
         else:
             options.add_argument("--start-maximized")
 
+        # Dynamic user agent based on OS
+        if platform.system() == "Windows":
+            options.add_argument("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
+        elif platform.system() == "Darwin":
+            options.add_argument("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
+        elif platform.system() == "Linux":
+            options.add_argument("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
+
         return options
 
     def _create_driver(self) -> webdriver.Chrome:
@@ -73,3 +80,4 @@ def __exit__(self, exc_type, exc_val, exc_tb) -> bool:
             except (OSError, WebDriverException):
                 logger.warning("Browser already closed or failed to quit.")
         return False
+"""
\ No newline at end of file