Firewall and anti-virus

I read in the ESET documentation that:
A personal firewall controls all network traffic to and from the system. This is accomplished by allowing or denying individual network connections based on specified filtering rules. It provides protection against attacks from remote computers and enables blocking of some services. It also provides antivirus protection for HTTP and POP3 protocols . This functionality represents a very important element in computer security.

Could anyone explain how the firewall provides antivirus protection for HTTP and POP3 protocols? What is the difference between the firewall and the web access and Email protection?

Thank you in advance

 

That seems badly worded, Web Access protection is part of the Anti-Virus not the firewall. The only similarities are they both use the proxy module for traffic, and both scan streaming packets of data.

 

Thank you for your reply.
Could you also tell me any differences? Does it make sense to disable Web Access and Email protection if the firewall is enabled?

 

No, they do separate things. Do not disable either.