I have specifically told Firefox in the Applications section to not play MP3 files or anything like that (streams, playlists, etc) in the browser and to prompt me what I ought to do about it. But still there are some sites where it will PLAY in the Browser even though I dont want it to. This means I have to Save the mp3 file using the File > Save Page command rather than use the traditional Download box. And that means it prevents me from using my download accelerator, which means my download progress might be interrupted and I wont be able to resume the file download. I need to make ABSOLUTELY CERTAIN, as in 110% certainty, that NO MP3 files will EVER play in the browser. Like EVER.