Website: Mozilla Firefox

Firefox is the Web browser component of the Mozilla Internet suite. Why use Firefox instead of the Microsoft Internet Explorer?

  Popup Blocking: Stop annoying popup ads in their tracks with Firefox’s built in popup blocker.

  Tabbed Browsing: View more than one web page in a single window with this time saving feature. Open links in the background so that they’re ready for viewing when you’re ready to read them.

  Privacy and Security: Built with your security in mind, Firefox keeps your computer safe from malicious spyware by not loading harmful ActiveX controls. A comprehensive set of privacy tools keep your online activity your business.

  Smarter Search: Google Search is built right into the toolbar, and there is a plethora of other search tools including Smart Keywords (type "dict " in the Location bar), and the new Find bar (which finds text as you type without covering up anything).

  Live Bookmarks: RSS integration lets you read the latest news headlines and read updates to your favorite sites that are syndicated.

Firefox also has many practical extentions, such as:
  Adblock: removes intrusive adverts that are increasingly taking over the Internet.
  CustomizeGoogle: Enhance Google search results by adding extra information (like links to Yahoo, Ask Jeeves, MSN etc) and removing unwanted information (like ads and spam).
  Download Statusbar: View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.