How can I enable & disable Farmville from (autoposting) auto-publishing posts in Facebook?
Here's how to prevent Facebook from auto-publishing (autoposting) your posts:
1. Click on the gear icon found at the top right of your Facebook page and select Settings.
2. Click the Apps tab on the left side of the page.
3. Click on Edit Settings link for FarmVille.
4. Under the "This App Can" section, disable the setting to post on your behalf by removing the check-mark from the circle.
Don't forget to hit Save if you've made any changes!