Reverse to YUI 3.0.0 since with YUI.3.10.3, comment content including words 'paragraph' or 'section' do not show up on Firefox, this is weird and has to be investigated.
<script type="text/javascript" src="{{ CM_MEDIA_PREFIX }}js/lib/yui/{{ YUI_VERSION }}/build/yui/yui-{% if CLIENT_DEBUG %}debug{% else %}min{% endif %}.js"></script>
<link rel="stylesheet" type="text/css" href="{{ CM_MEDIA_PREFIX }}js/lib/yui/{{ YUI_VERSION }}/build/cssreset/reset-min.css"/>
<link rel="stylesheet" type="text/css" href="{{ CM_MEDIA_PREFIX }}js/lib/yui/{{ YUI_VERSION }}/build/cssfonts/fonts-min.css"/>
<link rel="stylesheet" type="text/css" href="{{ CM_MEDIA_PREFIX }}js/lib/yui/{{ YUI_VERSION }}/build/cssbase/base-min.css"/>