My firefox shows this:

��������}ks\�u�g�W��"i`�� ��Q ��.�z�]O���3s�;�����ViI'�튒�l�*Q�DVT�l)I�]��$���L��X��9���c�0�r- i����o?N�>}^}����l�����e��6���b�r��^s�Z������� {wY�Rc��B'r���ju�~��Q�W��Ѩ2jVdЯ�?�a]u,��Q�dŎ�R��Mj�h�za�����ښ*]b.���J�v�Vɍ*/� ?����~<��� �2{�9p|a;|�E�z�Lx��r%%߬�r�nE��_��a��%�HxQy �

on certain pages such as http://userscripts.org/scripts/show/86900 and others

any possible fix? been looking around the net with no results