STYLETHREAD -- LET'S TALK SHOP!

I use firefox as my main browser and suddenly, since yesterday, I've been forced to post using only the html source editor box for the forum. I can't just post in the little box that comes up on the page when you hit reply or start a new topic. I'm pretty sure it's something to do with firefox and it's an easy fix, but I don't know what it is. Can anyone help? Thanks!