I am an artist based in New York City. I had another freelancer build a Firefox Add-On for me; it works in conjunction with Adblock Plus to replace web ads with an image of Jesus. You can learn more about the functionality and download the xpi file here: www.virtualmiracle.net.
I need the Add-On updated for latest version of Firefox (Mac and PC), incorporating latest version of Adblock Plus. I am under a tight deadline; it needs to be fully functional by January 2, 2013.