firewall issue

[aeyzee]

I am just curious about this firewall thing.
Anybody can tell me the function of the firewall and do I
really this need when surfing the internet? Does it cause trouble
with the internet's speed? Thanks.

[pam123]

Scroll down to Tech News/System Security, which is the forum for that question, and read.
You'll never have any doubts about needing a firewall again.
You should also ask the moderators to move this post there.
HTH