selenium 能用多线程进行开多标签页进行自动化测试吗？

我想用 selenium 多任务测试，不想开多个浏览器，只想在一个浏览器里面多标签操作。我参照网上的代码写了如下的。可是多窗口总是不行，二个关键字都输入到一个标签了。有人帮忙看看吗？

from selenium.webdriver.chrome.options import Options
from selenium import webdriver
from time import sleep
from selenium.webdriver.common.by import By
from concurrent.futures.thread import ThreadPoolExecutor

url = 'https://www.baidu.com/'
keys = ['java', 'python', 'go']

def openwin(url):
    newwindow = f'window.open("{url}")'
    browser.execute_script(newwindow)
    browser.switch_to.window(browser.window_handles[-1])
    handle = browser.current_window_handle
    sleep(2)
    print(handle)
    return handle
    
def outer(keyword):
    def browser_work(res):
        handle=res.result()
        print(handle)
        if browser.current_window_handle != handle:
            browser.switch_to.window(handle)  # 移动句柄，对新打开页面进行操作
        print('browser is  working...')
        el_location = browser.find_element(By.XPATH, '//*[@id="kw"]')
        el_location.clear()
        el_location.send_keys(keyword)
        el_location = browser.find_element(By.XPATH, '//*[@id="su"]')
        el_location.click()
        sleep(3)
        browser.close()
        browser.switch_to.window(browser.window_handles[0])
    return browser_work

ts=[]

options = Options()
options.add_argument("--no-sandbox")
options.add_argument('--disable-gpu')
options.add_argument('window-size=1920x1080')
browser = webdriver.Chrome(options=options)
browser.get("https://bing.com/")

POOL = ThreadPoolExecutor(2)
for i in keys:
    futrue = POOL.submit(openwin,url)
    futrue.add_done_callback(outer(i))