I install the plugin "NoDoFollow 1.1" in my firefox as they say its a tool for determining whether a site is nofollow or dofollow...ive already installed it so how do I use it... cant seem to figure it out...
You might want to try this extension as well, it's used by many: http://www.quirk.biz/searchstatus/ It's my favorite Firefox extension, it shows PR, Alexa, Do/NoFollow, Keyword Density and other things like that. Really cool and lightweight