chromium/components/policy/resources/templates/policy_definitions/Startup/.group.details.yaml

caption: Startup, Home page and New Tab page
desc: |-
  Configure the pages to load on startup, the default home page and the default new tab page in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing them.

        The user's home page settings are only completely locked down if you either select the home page to be the new tab page, or set it to be a URL and specify a home page URL. If you don't specify the home page URL, then the user is still able to set the home page to the new tab page by specifying 'chrome://newtab'.

        The policy 'URLs to open on startup' is ignored unless you select 'Open a list of URLs' in 'Action on startup'.