I have been trying to get an answer to a question and never receive it. I have asked how I can put the extension DTF in the Firefox options, extensions area so I don't get asked every time I want to open the file. It is a database program called Q&A for Windows that is an older version and I needed a patch to run it in WinXP. I had no problems opening it when I browsed and entered the application but couldn't tell it run this automatically because that extension isn't on the list. I had no problems remembering it when I was using IE for my browser but I want to use Firefox as my default browser. Can you help me?