The Pop-up Blocker prevents new windows that often contain ads from automatically opening when you visit a website.
To enable/disable the Popup Blocker click the button on the status bar at the
bottom of your browser window.
The number next to the icon on your status
bar indicates the number of pop ads that have been intercepted.
To let a pop-up through on a one-time basis, press and hold
the CTRL
key as you click on a link to navigate to a new page.