How do I launch the Chrome browser in Incognito mode using Selenium WebDriver?

To launch Chrome in Incognito mode, you need to use the ChromeOptions class provided by Selenium. You instantiate the options and then use the add_argument() method to pass the --incognito flag. In Python, your code would look like this: options = webdriver.ChromeOptions() followed by options.add_argument("--incognito"). Finally, you pass these options into your WebDriver initialization. This is a standard practice in automated testing to ensure a clean state, as it prevents the browser from reading or writing cookies and cache from previous sessions, which is crucial for verifying login flows and tracking pixels.

Does opening the browser in Incognito mode also disable all your Chrome extensions by default during the Selenium session, or do you have to manually disable those as well to ensure a clean test environment?

You can also achieve this in Java by using options.addArguments("--incognito"); before passing the options object to the ChromeDriver constructor. It works identically across languages.