Yes, i have installed "ExtraPlugins Accounts UI" on my N9. I restart my phone. Now i have more account choices in ACCOUNTS on my N9 menu. So, i dont understand yet (i have searched for that) , how to make my FB account work properly again?! I saw something for Jabber/XMPP, but i dont find an explanation, how do i use it and to switch on my FB chat and availability again? Please, help me, thank you in advance!