There are so many plugins that are currently available for Firefox that the mind boggles. A lot of the new web 2.0 sites today provide custom Firefox extensions that enhance functionality to a point that not having a properly configured Firefox browser is a distinct disadvantage.
I have profiled the 5 most critical Firefox extensions that I think are a requirement to use Firefox the way it was meant to be.
http://www.neobinaries.com/NewsBlog/tabid/...ve-without.aspx
Each extension is fully profiled, with a complete guide on how to install them, customize them based on your requirements, how to use them and excellent screenshots!!