Font files are in the right place and html code is with charset utf-8.
Thats the code:
<!DOCTYPE html>
<html>
<head>
<meta chaset="utf-8">
<title>Teste icone</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css">
</head>
<body>
<button type="button" class="btn btn-default btn-lg">
<span class="glyphicon glyphicon-star"></span> Star
</button>
</body>
</html>
and thats the file structure:
-css
*bootstrap.min.css
-fonts
*all font files here
*index.html
The strange is that when i look on debug all font files are loaded correctly