I have been using NLS Web Braille books for nearly two years. Until recently, I downloaded these files with Internet Explorer. I had set Folder Options in Windows to recognize brf files. I have now switched to Mozilla Firefox for browsing. Firefox isn't as accessible as IE, but it is much faster, less subject to hacks and has tabbed browsing. I have been unable to get Firefox to recognize brf files at the NLS Web Braille site. Even though it downloads from other sites, when I click on a brf file representing a book volume, it just opens the volume on screen. I would be interested in hearing from anyone who had used Firefox with NLS Web Braille. Richard Wright