CODEWITHSUNDEEP
httptcpfirewall
Gautam Jain
Gautam Jain

Reputation: 6849

Internet browser & firewall

Whenever I install a program that opens a TCP/IP port, the firewall interrupts and asks for permission.

I have noticed that this is not the case with Internet Browsers. Why is it that firewall has not interrupted for various browsers that I have installed?

I am using Windows Firewall.

Thanks.

Upvotes: 0

Views: 108

Answers (2)

paulsm4
paulsm4

Reputation: 121669

Because port 80 is almost universally enabled in just about every firewall by default :)

Upvotes: 0

Andy Hey
Andy Hey

Reputation: 174

Most browser traffic will be over port 80 and 443 which will either be open already. It could also be the case that the firewall is stateful so any connection is enabled outbound and the firewall remembers this connection and allows the return data only blocking incoming connections on that port.

Upvotes: 1

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