You do not need to link JibJab to Facebook, or even have a Facebook account in order to use JibJab.
If you are linked to Facebook unintentionally, please follow these directions to unlink your Facebook account.
To log into an existing account click the "Log In" link at the bottom of the JibJab app. Then enter the email and password you used to create the account. They do NOT need to be associated with a Facebook account.
To create a new account, tap the "Sign up with Email" button and then enter the email address and password you would like to use with JibJab. The email and password you use to NOT need to be associated with Facebook in any way.