how to override default set of chrome command line switches in selenium

Question

By default, chrome will be run with this command line:

\"C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe\"
--disable-hang-monitor
--disable-         


        

Answer 1

Now you can just use the excludeSwitches property.

   desiredCapabilities: {
        browserName: 'chrome',
        chromeOptions: {
            args: [],
            excludeSwitches: [ "disable-background-networking" ]
        }
    }

Note the lack of "--".

Answer 2

The official way to customize the Chrome options from within selenium:

    # renaming import in order to avoid collision with Options for other browsers, so that you can also use e.g.
    # from selenium.webdriver.firefox.options import Options as FirefoxOptions

    from selenium.webdriver.chrome.options import Options as ChromeOptions


    options = ChromeOptions()
    options.add_argument("--headless")
    options.add_argument('--disable-gpu')
    options.add_argument('--disable-dev-shm-usage')
    options.add_argument('--disable-extensions')
    options.add_argument('--no-sandbox')
    options.add_argument('window-size=1920,1080')

    # only necessary if you want to use a specific binary location
    # options.binary_location = '/Applications/Chromium.app/Contents/MacOS/Chromium'

    driver = webdriver.Chrome(chrome_options=options)

Answer 3

I tried following Nakilions answer (https://stackoverflow.com/a/17429599/4240654) like so:

import subprocess 
chrome = subprocess.Popen(["/opt/google/chrome/chrome", "--no-first-run", "--dom-automation", "--testing-channel=NamedTestingInterface:e7379994e192097cde140d3ffd949c92"],  cwd="/")
from selenium.webdriver.chrome.service import Service
chromedriver_server = Service('/usr/lib/chromium-browser/chromedriver', 0)
chromedriver_server.start()
from selenium.webdriver import Remote
driver = Remote(chromedriver_server.service_url,
    {"chrome.channel": 'e7379994e192097cde140d3ffd949c92', "chrome.noWebsiteTestingDefaults": True})

I ran this all in Python interpreter. Chromedriver window opens, but is not showing the 'synced in' account and icon. This is necessary for me because Im trying to run a script on a Google Voice messages to delete so I have to log in.

I tried the two flag methods also:

from selenium import webdriver
chromeOptions = webdriver.ChromeOptions()
chromeOptions.add_experimental_option(
    'excludeSwitches',
    ['disable-hang-monitor',
     'dom-automation',
     'full-memory-crash-report',
     'no-default-browser-check',
     'no-first-run',
     'safebrowsing-disable-auto-update',
     'safebrowsing-disable-download-protection',
     'disable-component-update',
     'enable-logging',
     'log-level=1',
     'ignore-certificate-errors',
     'disable-prompt-on-repost',
     'disable-background-networking',
     'disable-sync',
     'disable-translate',
     'disable-web-resources',
     'disable-client-side-phishing-detection',
     'disable-component-update',
     'disable-default-apps',
     'disable-zero-browsers-open-for-tests'])

chromeDriver = webdriver.Chrome(chrome_options=chromeOptions)
chromeDriver.get("https://www.google.com/voice/b/1?gsessionid=adebrtbrt&pli=1#inbox/p89")

Answer 4

Assuming you want to do this in Python, you can add a parameter to chromeOptions so that it won't enable these switches (a bit confusing, but ok).

Given that you want to remove the following switches:

--disable-hang-monitor
--disable-prompt-on-repost
--disable-background-networking
--disable-sync
--disable-translate
--disable-web-resources
--disable-client-side-phishing-detection
--disable-component-update
--disable-default-apps
--disable-zero-browsers-open-for-tests

You would set up your Chrome driver like so:

from selenium import webdriver

chromeOptions = webdriver.ChromeOptions()
chromeOptions.add_experimental_option(
    'excludeSwitches',
    ['disable-hang-monitor',
     'disable-prompt-on-repost',
     'disable-background-networking',
     'disable-sync',
     'disable-translate',
     'disable-web-resources',
     'disable-client-side-phishing-detection',
     'disable-component-update',
     'disable-default-apps',
     'disable-zero-browsers-open-for-tests'])

chromeDriver = webdriver.Chrome(chrome_options=chromeOptions)

Answer 5

You should start browser by yourself and then tell selenium, that you already have it launched via passing special channel id. Something like that:

from random import randrange
channel_id = "%032x" % randrange(16**32)

from subprocess import Popen
# HERE YOU PASS ONLY THOSE PARAMETERS YOU WANT (i.e. without --disable-*)
# BUT YOU MAY NEED --dom-automation FOR SOME ROUTINES
chrome = Popen(" ".join([
    PATH_TO_CHROME_EXE,
    "--no-first-run", "--dom-automation",
    ("--testing-channel=\"NamedTestingInterface:%s\"" % channel_id),
]))

try:
    from selenium.webdriver.chrome.service import Service
    chromedriver_server = Service(PATH_TO_CHROMEDRIVER, 0)
    chromedriver_server.start()
    from selenium.webdriver import Remote
    driver = Remote(chromedriver_server.service_url,
        {"chrome.channel": channel_id, "chrome.noWebsiteTestingDefaults": True})

    driver.get(MY_WEBPAGE)
    # DO YOUR WORK

finally:
    chromedriver_server.stop()
    driver.quit()

chrome.kill()
chrome.wait()