I'm running WordPress 3.5.2 on PHP 5.3, yet when I activate NGFB then every page of my wp-admin panel shows this red error message at the top:
NGFB Warning : The mb_decode_numericentity() function (available since PHP v4.0.6) is missing. This function is required to decode UTF8 entities. Please update your PHP installation as soon as possible.
I've been searching everywhere, but can't find anyone else having this problem. Thoughts? Any help is appreciated.