[Solved] Find the mistake in this FirefoxOptions usage:from selenium.webdriver.firefox.options import Options options = Options() options.add_argument('-headless') driver = Firefox(options=options) | Selenium Python

Selenium Python - Cross-Browser Testing

Find the mistake in this FirefoxOptions usage:

from selenium.webdriver.firefox.options import Options
options = Options()
options.add_argument('-headless')
driver = Firefox(options=options)

Aadd_argument() is not a valid method

BOptions object cannot be passed to Firefox

CArgument should be '--headless', not '-headless'

DHeadless mode must be set via options.headless attribute

Step-by-Step Solution

Solution:

Step 1: Check argument syntax for headless mode
The correct argument is '--headless' with two dashes.
Step 2: Identify impact of wrong argument
Using '-headless' will not enable headless mode as expected.
Final Answer:
Argument should be '--headless', not '-headless' -> Option C
Quick Check:
Headless argument requires double dashes [OK]

Quick Trick: Use '--headless' with two dashes for headless mode [OK]

Common Mistakes:

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Find the mistake in this FirefoxOptions usage: