11 Powerful Firefox 3 Add-ons That Can Replace Standalone Applications

11 Powerful Firefox 3 Add-ons That Can Replace Standalone Applications: "Firefox add-on developers have created some impressive applications that can replace larger, bloated programs. These add-ons can help if you have a small amount of precious hard drive space or you are on a tight budget and don’t have cash to fork out for applications. All, of which, can be accessed right from your Firefox browser window."