Does Mozilla support downloadable fonts?
Downloadable fonts in TrueType and OpenType formats (.ttf and .otf) are supported since Firefox 3.5. The fonts have to be served from the same origin (protocol, host, port) as the content that uses them unless the fonts are served with the appropriate Cross-Origin Resource Sharing HTTP headers. Downloadable fonts in the EOT format are not supported. If you use downloadable fonts, please make sure the fonts have the right Unicode mappings and the content uses the right Unicode characters. The past practice of displaying non-Latin text by assigning non-Latin glyphs to Latin code points breaks copying and pasting, breaks searching on the page, breaks indexing by search engines and breaks readability in browsers that do not support downloadable fonts (e.g. legacy browsers or mobile browsers that opt not to download fonts due to file size).
