The Norton Smart Firewall works on the Internet as a communicator between your computer and other computers. It is necessary to keep your system safe from common security problems, but at the time we need to close the firewall and for that you should go to the notification area on the task bar and click on the Norton icon, wherever you want Smart firewall can disable or enable. You can also set the period for which you want it to be closed. It is highly recommended that you should not block the firewall for a long time as it protects your system from internet thread and security risk. Please contact @ Norton Activation Support Number 1-800-875-393 (toll free) 24 x 7 in Australia to know more.