[Solved] You wrote this code to disable Firefox notifications but it still shows notifications during tests: profile = FirefoxProfile() profile.set_preference('dom.webnotifications.enabled', 'false') profile.... | Selenium Python

Selenium Python - Advanced Patterns

You wrote this code to disable Firefox notifications but it still shows notifications during tests:

profile = FirefoxProfile()
profile.set_preference('dom.webnotifications.enabled', 'false')
profile.update_preferences()

What is the likely cause of this problem?

AThe method update_preferences() is deprecated and should be removed

BMissing call to profile.save() before using profile

CNotifications cannot be disabled via profile settings

DThe preference value should be boolean False, not string 'false'

Step-by-Step Solution

Solution:

Step 1: Check preference value type
The value 'false' is a string, but the preference expects a boolean False to disable notifications.
Step 2: Understand effect of wrong type
Passing string 'false' does not disable notifications, so they still appear.
Final Answer:
The preference value should be boolean False, not string 'false' -> Option D
Quick Check:
Boolean False needed, not string 'false' [OK]

Quick Trick: Use boolean False, not string, to disable prefs [OK]

Common Mistakes:

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