FF problem with Roboto Condensed

Firefox can not properly render Roboto Condensed with small-caps

HTML

<script src="https://fonts.googleapis.com/css?family=Roboto+Condensed:400,300&amp;subset=latin,latin-ext"></script>
<body>
    <p>Lorem Ipsum dołor sił Łamet</p>
    <p class="workingInFF">Lorem Ipsum dołor sił Łamet</p>
    <p class="notWorking">Lorem Ipsum dołor sił Łamet</p>
</body>

CSS

body{
    font-variant:small-caps;
}
p.workingInFF{
    font-family:Roboto;
}
p.notWorking{
    font-family:'Roboto Condensed';
}