from selenium import webdriver
from selenium.webdriver.firefox.options import Options 
from selenium.webdriver.firefox.service import Service

def get_webdriver():
    options = Options()
    options.add_argument('--headless')  # Optional
    options.binary_location = '/opt/firefox/firefox'

    service = Service('/usr/local/bin/geckodriver')

    driver = webdriver.Firefox(options=options, service=service)
    return driver