Norton Safe Web Lite

Hi...

I've downloaded Norton Safe Web Lite...It downloaded fine and shows in Program Files and Add/Remove...but how exactly does it incorporate itself into my browser when surfing?

When the download finished, there was no other information or clue given.

I use Firefox most of the time but also have Google Chrome and Internet Explorer 9

I run Windows 7 Home (64-bit)

I ran a Search within Firefox and there was no sign of Norton anywhere. Equally within Chrome.

So where on earth is Norton Safe Web?

I'm probably missing something simple here as a newbie...so could anyone help on this?

Many thanks