此错误消息…
WebDriverException: Message: The browser appears to have exited before we Could connect.
If you specified a log_file in the FirefoxBinary constructor, check it for details.
…暗示 无法启动/产生新的 即 会话。
您需要注意以下几点：
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
binary = r'C:\Program Files\Mozilla Firefox\firefox.exe'
options = Options()
options.set_headless(headless=True)
options.binary = binary
cap = DesiredCapabilities().FIREFOX
cap["marionette"] = True #optional
driver = webdriver.Firefox(firefox_options=options, capabilities=cap, executable_path="C:\\Utility\\BrowserDrivers\\geckodriver.exe")
driver.get("http://google.com/")
print ("Headless Firefox Initialized")
driver.quit()
Headless Firefox Initialized
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