When you connect your account to ManageFlitter, we only request access to post to your Facebook account and Facebook pages. Unfortunately Facebook always grants access to some basic information about your account such as your friends lists and public profile information. There is no way for us to exclude these permissions while having access to post to your account or your pages, even though we do not use this information. You can find out more information about this here: https://developers.facebook.com/docs/facebook-login/permissions/
Unless Facebook change this policy, the only way for us to not have access to these details of your account is for you to not connect your Facebook account to ManageFlitter.