Facebook is celebrating this Christmas by adding snowfall on Chat Heads. As many Facebook users saw an obscure sponsored post over the weekend in their News Feed which reads, “Chatting just got more festive! Look out for a treat December 24th-26th”. Facebook just kept their words by spicing up the Chat Heads.
The snowfall starts whenever you tap on Chat Head. Your friends face will be full of swirling snowflakes for a few seconds, its end automatically. You can start it over by tapping the head again. Apparently this feature not yet rolled out for all users.