Have you ever found yourself bored or just having some extra time on your hands? There is a Firefox Add-On to suit your needs and it is called Stumble Upon. It can be downloaded from here: https://addons.mozilla.org/en-US/firefox/addon/138. Also if you do not have Firefox installed you can download it from here: http://www.mozilla.com/en-US/firefox/. To add this to Firefox all you will need to do is just click on the Add to Firefox Button on the Stumble Upon download page. All you will need to do after it is installed in Firefox make an account. Then from there choose the kinds of content that you would like to see then just start stumbling around the web. By clicking on the thumbs up and thumbs down buttons in the toolbar Stumble Upon willbe able to show you more sites that will like better and also know what you don't like as well. I can assure you that you will have hours of fun browsing the web and finding a ton of new sites along the way.