How to pass profile preferences to the browser?

  • Created

We recommend that you read the Getting started with Kameleo Automation article before reading this one.

With Kameleo you can fine-tune the browsers and you can pass most of the options, and preferences that are supported by the browsers. You need to start the browser with POST /profiles/{guid}/start endpoint and pass preferences and additionalOptions to it. See the documentation on SwaggerHub.

You can set a list of preferences for browsers at startup. In the case of Chromium-based browsers, it will be a user profile preference. In the case of Firefox profiles, it will be a preference.

You can also set a list of additional options at startup. These are values that are defined by our team.

This way you can simply save network traffic by disabling images by passing an extra preference. And change pageLoadStrategy by defining in the additionalOptions

  • await client.startProfileWithOptions(profile.id, {
      body: {
        preferences: [
          {
            key: 'profile.managed_default_content_settings.images',
            value: 2,
          },
        ],
        additionalOptions: [
          {
            key: 'pageLoadStrategy',
            value: 'eager',
          },
        ],
      },
    });

    See full example here.

  • await client.StartProfileWithOptionsAsync(profile.Id, new WebDriverSettings
    {
      Preferences = new List<Preference>
      {
        new Preference("profile.managed_default_content_settings.images", 2),
      },
      AdditionalOptions = new List<Preference>
      {
        new Preference("pageLoadStrategy", "eager"),
      }
    });

    See full example here.

  • client.start_profile_with_options(profile.id, WebDriverSettings(
      preferences=[
        Preference(key='profile.managed_default_content_settings.images', value=2),
      ],
      additional_options=[
        Preference(key="pageLoadStrategy", value="eager")
      ]
    ))

    See full example here.

Please note that some preferences may be blacklisted as they may interfere with Kameleo’s spoofing mechanism.

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