For some odd reason the most recent versions of Firefox (10.0.1 and up) it is having issues with some buttons not working. One of them is when you click edit on a post and you click "Use Full Editor" it does nothing and just sits there it doesn't even show that the browser's processing anything.. I assume this is either a bug in Firefox or it is a bug with the IPB 3. For now I'm just using Google Chrome.
If an administrator could please contact Invision Power about this, I'd appreciate it.