import os
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
executable_path = 'path_to_webdriver'
os.environ['webdriver.chrome.driver'] = executable_path
chrome_options = Options()
chrome_options.add_extension('path_to_extension')
driver = webdriver.Chrome(executable_path=executable_path, chrome_options=
    chrome_options)
driver.get('http://stackoverflow.com')
driver.quit()
Как выбрать расширения Chrome для включения при использовании Selenium