Firefox configuration in Selenium Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Firefox WebDriver instance.

Selenium Python

from selenium import webdriver

browser = webdriver.Firefox([1])

Drag options to blanks, or click blank then click option'

Aexecutable_path='geckodriver.exe'

Boptions=None

Cservice=None

Dfirefox_profile=None

Attempts:

3 left

💡 Hint

Common Mistakes

Using deprecated 'executable_path' parameter.

Passing 'options' without creating FirefoxOptions object.

The service parameter is used to specify the geckodriver executable service in Selenium 4+. Passing service=None uses the default service.

2fill in blank

medium

Complete the code to set Firefox to run in headless mode.

Selenium Python

from selenium.webdriver.firefox.options import Options

options = Options()
options.[1] = True

browser = webdriver.Firefox(options=options)

Drag options to blanks, or click blank then click option'

Aheadless

Bset_headless

Cenable_headless

Drun_headless

Attempts:

3 left

💡 Hint

Common Mistakes

Using a method name instead of a property.

Misspelling the property name.

Setting options.headless = True enables headless mode in Firefox.

3fill in blank

hard

Fix the error in the code to set a custom Firefox profile path.

Selenium Python

from selenium.webdriver.firefox.firefox_profile import FirefoxProfile

profile = FirefoxProfile('[1]')
browser = webdriver.Firefox(firefox_profile=profile)

Drag options to blanks, or click blank then click option'

AC:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\xyz.default

Bcustom/profile/path

Cprofile/path

D/path/to/custom/profile

Attempts:

3 left

💡 Hint

Common Mistakes

Using relative or incomplete paths.

Using single backslashes without escaping on Windows.

The FirefoxProfile constructor requires the full absolute path to the profile folder. The Windows path with double backslashes is correct.

4fill in blank

hard

Fill both blanks to set a Firefox preference and start the browser with it.

Selenium Python

from selenium.webdriver.firefox.options import Options
from selenium.webdriver.firefox.firefox_profile import FirefoxProfile

profile = FirefoxProfile()
profile.set_preference('[1]', [2])

browser = webdriver.Firefox(firefox_profile=profile)

Drag options to blanks, or click blank then click option'

Ajavascript.enabled

Bnetwork.proxy.type

CTrue

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect preference names.

Passing string 'True' instead of boolean True.

Setting javascript.enabled to True enables JavaScript in Firefox.

5fill in blank

hard

Fill all three blanks to create a Firefox WebDriver with headless mode and a custom profile path.

Selenium Python

from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from selenium.webdriver.firefox.firefox_profile import FirefoxProfile

options = Options()
options.[1] = True
profile = FirefoxProfile('[2]')
browser = webdriver.Firefox(options=options, firefox_profile=profile, service=[3])

Drag options to blanks, or click blank then click option'

Aheadless

BC:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\xyz.default

CNone

DTrue

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect property names for headless mode.

Using relative or incomplete profile paths.

Passing incorrect service parameter values.

Set options.headless = True to run Firefox headless, provide the full profile path, and pass service=None to use default driver service.