FarmVille are offering a free Blue Quarter Horse if you agree and accept FarmVille Notifications, Publish Stream and Email.
Once you have granted FarmVille permission (by clicking allow) you will then recieve the Blue Quarter Horse in your Gift Box
If you share your FarmVille Rewards in a Group then you will need to turn off 'Post on my behalf'
Click here and click on FarmVille, go to 'Post on my behalf' and click remove.
This will not affect your game but it will allow you to post manualy