Hi,
The best (I think) is to ask yourself: what do you need? Something you have a look on and you can easily modify (changing rules etc...) or something just simple to block basics attacks?
For the first one, I agree with Stanca as firestarter is one of the only available interface (I'm not sure but his development can be stopped now so maybe you will need to look for gufw or any ufw interface then)
For the second one if you need somehing simple (as only one machine or simple router system and little home network) you can use for example
easy firewall generator for iptables; for bigger network best can be to write your own rules or look in synaptic for "iptables" you can find some rules writers/helpers...)
I have preference for the easy generator solution which should be strong enough for home use and has also a good point I like: It's just light!
You can also see that this easy script is a bit outdated (as it has been written on 2.4 kernel!!!

but once more, it should work...
Ciao
MerMouY
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