The problem is with firefox 33. The previous version 29 didn't show this problem. I need to show a barcode in a page. I have the necessary font which correctly displays the barcode when installed. Presently IE(in Windows) and Firefox 29(both in Windows and Ubuntu) display it properly. No sooner had I upgraded to Firefox 33 it shows only the numbers even inspite of checking the "Allow pages to choose their own fonts." in Fonts options.
Please help.
PS: Please find the html file as well as the font here
