INTERNET: Firefox for Web Browsing

Once you try this browser I doubt you will go back to Internet Explorer, with a few exceptions.

Firefox home

The best features are the tabbed browsing (really helpful if you look at 5+ webpages at a time), and the built-in ad-blocking/Image blocking.

You can find some helpful extensions. I mainly just use the flashblock as you can guess blocks flash animations unless you click on them to allow them.
Firefox Add-ins