Hi all, this document: \font\foo="file:LinLibertine_R.otf:+onum;mode=node;" \foo foo 12345 whatever \bye works correctly if the font is uncached but leads to garbled output in firefox’s pdf plugin if the font is loaded from cache. Afaics none of the other viewers are affected. Also I haven’t found another font that does this. Libertine fonts: http://sourceforge.net/projects/linuxlibertine/files/linuxlibertine/5.3.0/ (First observed by Luigi.) What is going on here? Philipp