I am using Yahoo Messenger through http://mail.yahoo.com in Firefox 9.0.1 under Windows XP.
In Firefox 8, chat works without problem, but in Firefox 9, I can log in to chat, friend list is populated, but when I click one of my contacts, it doesn't open a chat window (it should). I tried pressing 'i' (keyboard shortcut for new chat), also no chat window.
I tried using Chrome and the chat works in Chrome.
Does anyone know how to make YM chat work with Firefox 9?