Firewalls have had some major advancements in the last 3-5 years. If you are running an older firewall, it is time you look at an upgrade. Most modern firewalls can scan your traffic for viruses and threats. It can also have URL filtering built right into the device to help keep good employees from going to bad places. Finally, most modern firewalls have the ability to get dynamic updates, allowing you to keep yourself updated against the latest threats.