How to Disable CSS in Chrome Using Selenium with ChromeDriver?

Disabling CSS in Python Selenium using ChromeDriver with ChromeOptions

In an effort to optimize page load times, many developers attempt to disable specific elements such as images or JavaScript. In this case, the goal is to disable CSS to further improve page rendering speed. While options exist for disabling images and JavaScript, the issue arises when trying to disable CSS in Chrome using Selenium with the WebDriver.

The initial approach involved modifying the 'prefs' dictionary to target the CSS setting:

{'profile.default_content_setting_values': {'css': 2}}

However, this modification proved ineffective.

To successfully disable CSS in Chrome using Selenium, a more comprehensive solution is required. The 'prefs' dictionary can be expanded to include a wider range of content settings:

prefs = {'profile.default_content_setting_values': {'cookies': 2, 'images': 2, 'javascript': 2, 
                            'plugins': 2, 'popups': 2, 'geolocation': 2, 
                            'notifications': 2, 'auto_select_certificate': 2, 'fullscreen': 2, 
                            'mouselock': 2, 'mixed_script': 2, 'media_stream': 2, 
                            'media_stream_mic': 2, 'media_stream_camera': 2, 'protocol_handlers': 2, 
                            'ppapi_broker': 2, 'automatic_downloads': 2, 'midi_sysex': 2, 
                            'push_messaging': 2, 'ssl_cert_decisions': 2, 'metro_switch_to_desktop': 2, 
                            'protected_media_identifier': 2, 'app_banner': 2, 'site_engagement': 2, 
                            'durable_storage': 2}}

By disabling all these settings, including CSS, the page will load without any styling or visual enhancements. This comprehensive approach ensures that CSS is disabled effectively.

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