Launch the FOX App on your device. Sign in with an existing FOX account by entering your email and password.Foxnews.com/connect.Once you're signed in, select the Cast icon from the upper or lower right side of the screen. Select your Chromecast from the list of devices to launch the FOX App on your TV.To activate FOX Sports on your device, you will be provided a code on screen with a prompt to activate your device. To activate:using a web browser on your mobile device, laptop, tablet, or PC. Enter the code that was provided on your connected device.Your will be prompted to sign in with your TV provider credentials on your connected device.Foxnews.is a platform for those who want to register their devices to access the Fox News streaming application.Foxnews. To activate Fox News on your device you need authentication from the channelitself.