def proxy(proxy_host, proxy_port):
    fp = webdriver.FirefoxProfile()
    fp.set_preference("network.proxy.type", 1)
    fp.set_preference("network.proxy.http", proxy_host)
    fp.set_preference("network.proxy.http_port", proxy_port)
    fp.set_preference("network.proxy.https", proxy_host)
    fp.set_preference("network.proxy.https_port", proxy_port)
    fp.set_preference("network.proxy.ssl", proxy_host)
    fp.set_preference("network.proxy.ssl_port", proxy_port)
    fp.set_preference("network.proxy.ftp", proxy_host)
    fp.set_preference("network.proxy.ftp_port", proxy_port)
    fp.set_preference("network.proxy.socks", proxy_host)
    fp.set_preference("network.proxy.socks_port", proxy_port)
    fp.update_preferences()

    return


driver = webdriver.Firefox(firefox_profile=fp) # fp не разрешенная с функции proxy


def test():
    driver.get('https://2ip.ru')


if __name__ == '__main__':
    proxy_host = '0.0.0.0'
    proxy_port = 0000
    driver = proxy(proxy_host, proxy_port), test()