You can automatically wish your friends happy birthday even if you are not going to be on facebook to wish them happy birthday on that very important day when it comes up.
This is very important plugin to help you appear more caring to the most important friends on your facebook account. Also since we have another pluging called "Birthday Wishers" which helps you know all the people who wished you a happy birthday, you can sync it with this plugin to enable you to return the favor to those who wished you a happy birthday when it came and passed.
This software will allow you to either automatically generate the same happy birthday message to all users or create different messages to specific users. One important feature with this plugin is, even if your friend's birthday is 11 months from now, once you set it, when that day comes the software will make that post for you.
If you want to know people who wished you happy birthday dont forget to checkout "Birthday Wishers" plugin from this same panel