I am currently using selenium webdriver to parse through facebook user friends page and extract all ids from the AJAX script. But I need to scroll down to get all the friend
You can use send_keys to simulate an END (or PAGE_DOWN) key press (which normally scroll the page):
from selenium.webdriver.common.keys import Keys html = driver.find_element_by_tag_name('html') html.send_keys(Keys.END)