Mozilla Prism is a software from Mozilla labs that allows you to integrate the web applications into the native desktop. So it means those web applications(facebook, myspace, and others) will be acting just like a native software. Cool isn't it? And right now, I'm going to give you some tutorials to install Prism inside Ubuntu 8.04. Please read and follow the instructions carefully.
The installation is pretty easy, you can use the apt-get to perform the installation.
Available Prism Packages in Ubuntu 8.04