I have a link to the Facebook app on one of my screens and whenever I open it and immediately click on "News Feed", there are posts from a matter of minutes or 1 hour ago even when I haven't opened the app for a full day or two. I am not root, using stock everything and have downloaded all of the OTA updates. My Settings > Accounts and Sync menu shows accounts only for Google and Weather, nothing for Facebook. Auto-sync data is checked but shouldn't it only do so for the accounts that are setup?