Problema con fuentes y Firefox

[xexio]

Código:

@font-face {
font-family: 'pirulen';
src: url('http://cemaconsulting.es/wp-content/themes/headway/fonts/pirulen_rg.eot');
src: url('http://cemaconsulting.es/wp-content/themes/headway/fonts/pirulen_rg.eot?#iefix') format('embebed-opentype'),
     url('http://cemaconsulting.es/wp-content/themes/headway/fonts/pirulen_rg.ttf') format('truetype'),
     url('http://cemaconsulting.es/wp-content/themes/headway/fonts/pirulen_rg.svg#') format('svg');
font-weight: normal;
font-style: normal;
}

body.custom .entry-title {font-family: 'pirulen', sans-serif; color: blue; font-size: 14px;}