This appears to be a recent bug as I've been using FF 4 for quite some time on XenForo however the quick reply editor is not showing on posts. At first I thought this was a cruel Miserable group joke due to my recent rantings but IE6 works fine. I'd screenshot but I'm at work so I can do one when i get home but I see my Avatar to the left so I am logged in, also the thread is not locked so I have permission to reply. When I click on More Options it doesn't show the editor either. Sorry if this is duplicate.