danasoft sign widget

Please forgive my computer ingnorance...I am not very tech savy.

 

I was on a internet forum and somebody had a danasoft sign widget as their sig.....

 

The widget  knew my IP address, Operating Software, Browser....and most scary to me..... the Town my computer is located in.

 

I thought I had my Norton Internet Securtiy Firewall up?  How did the widget know all that?  and most importantly how can I set up my Norton Product to prevent the widget from knowing all that?