wifi problem after uninstalling firestarter

I recently installed firestarter in ubuntu jaunty. but since the net worked only if i start firestarter i uninstalled it. now the wifi gets connected but internet does not get loaded. From the ubuntu forums, I found this solution to flush my iptables.
sudo iptables -F
sudo iptables -X
sudo iptables -t nat -F
sudo iptables -t nat -X
sudo iptables -t mangle -F
sudo iptables -t mangle -X
sudo iptables -P INPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -P OUTPUT ACCEPT

this worked fine. But the problem is everytime i connect to wifi i have to perform this task. Is there a permanent solution for this?