Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to make FireFox headless programmatically in Selenium with python?

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

Rohit bhat
Rohit bhat
more options

I am running this code with Python (http://bit.ly/38YA0O1), selenium, and firefox but still get 'head' version of firefox:

binary = FirefoxBinary('C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe', log_file=sys.stdout)

binary.add_command_line_options('-headless')

self.driver = webdriver.Firefox(firefox_binary=binary)

I also tried some variations of binary:

binary = FirefoxBinary('C:\\Program Files\\Nightly\\firefox.exe', log_file=sys.stdout) 

       binary.add_command_line_options("--headless")
I am running this code with Python (http://bit.ly/38YA0O1), selenium, and firefox but still get 'head' version of firefox: binary = FirefoxBinary('C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe', log_file=sys.stdout) binary.add_command_line_options('-headless') self.driver = webdriver.Firefox(firefox_binary=binary) I also tried some variations of binary: binary = FirefoxBinary('C:\\Program Files\\Nightly\\firefox.exe', log_file=sys.stdout) binary.add_command_line_options("--headless")

Modified by Rohit bhat

All Replies (2)

silvanocerza
silvanocerza
more options

Like this: 

   options = Options()
   options.headless = True
   driver = webdriver.Firefox(options=options, executable_path='C:\\Program Files(x86)\\Mozilla Firefox\\firefox.exe', log_file=sys.stdout)

or by setting the env var MOZ_HEADLESS: 

   import os
   os.environ["MOZ_HEADLESS"] = "1"
   driver = webdriver.Firefox(executable_path='C:\\Program Files (x86)\\MozillaFirefox\\firefox.exe', log_file=sys.stdout)

Modified by silvanocerza

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

I don't think that headless mode works with a profile used for normal mode.

Are you using a special profile for running Firefox in headless mode ?

You need to use the Profile Manager to create the new profile folder, but not launch Firefox (i.e. click Exit). You need to specify this profile via -P "profile-name" command line switch.

See: