Hi @Georgina1
Greetings from McAfee.
We would like to let you know that McAfee firewall protection can be used on the PC's level not on the smart phones. However, alternatively on the McAfee mobile security you may use safe web which can help before you land on a suspicious web page, we'll show you a warning screen. You can choose to continue or safely avoid the page.
Alternatively, you can always contact chat support using the link below for immediate assistance or call our helpline number 24/7 (866-622-3911)US.
McAfee Support
If this information was helpful in any way or answered your question, please mark it as the accepted solution and give Kudos if appropriate.
Regards,
Venkat