I\'m using bootstrap and I added font awesome through Less, overriding the Glyphicons. The icons display OK in chrome but in Firefox i just see boxes.
This is how my
Using a CDN as premjg suggested is the least invasive method besides hosting it yourself. The latest version of fontawesome suggests bootstrapcdn, e.g.,
As a minor note, noscript silently blocks requests to the CDN unless whitelisted, and it won't prompt you to whitelist the CDN unless your page also requests JS files from the same domain.