Firefox multiple accounts

I've been talking with some people who RP for ages now on how neat it would be to have an extension on firefox which allows you to log into different accounts. And one of those people I RP with actually finally came up with it! He's looking for some people to give the first version a go and give him some feedback.

So if you're interested go here to download and give him your undying love. His email is on there or you can AIM him at Slartimus if you want to talk to him in person.

*worships like whoa*