I am a lead digital support associate and am attempting to help a customer connect her Facebook account on her Nook Color. When we attempt to link the device to Facebook we are taken to the http://m.facebook.com page and asked to login. We then receive the error message: "Please make sure cookies are enabled on your browser (which the are)". Oddly enough we can login through the B&N homepage Facebook link and then she sees her Facebook account with the mobile app interface. I'm really confused.
Have you gone into Settings/app settings box/social/Manage your accounts/then link (sign in) Facebook account? I think that may help if you haven't.