I've already tried three ways, and only the first way can work.
Add user information in front of url, and this is the only way success.
url_address = "http://username:passwd@abc.cde.com/" browser = webdriver.Firefox() browser.get(url_address)
2.Second way is use .switch_to_alert() to switch to pop window
and use send_keys() to key in user information, it work just fine until send_key(Keys.TAB) have used; It will TAB the input maker into password field but when send_key("password") line, It jumps back to username field and then key in password! I have make a Demo gif link below.
browser = webdriver.Firefox()
browser.get(url_address)
WebDriverWait(browser,10).until(EC.alert_is_present(),"wait for alert pop out")
alert_window=browser.switch_to_alert()
alert_window.send_keys("username")
time.sleep(5)
alert_window.send_keys(Keys.TAB)
time.sleep(5)
alert_windows.send_keys("passwd")
time.sleep is in order to know if TAB really work or not. Same result if it removed
Update 11/14 change send_keys to one line and it work as expect Like this alert_window.send_keys("username"+Keys.TAB+"passwd")
3.Third way is use alert_window.authenticate()but it return
selenium.common.exceptions.WebDriverException: Message: POST /session/c7411dfa-5a0e-41e3-b8b3-e8f7d9dc9843/alert/credentials did not match a known command
Any idea to fix issue on 2 and 3 ? tool list : python 3.6.2 selenium firefox 54.0.1 (32 bit)