I routinely have trouble getting Firefox to open MP3 files in an application on my Windows 7 laptop. When I visit an MP3 URL (sample link from A Prairie Home Companion), I get the following dialog box:
I have Windows Media Player set as the default MP3 file handler in Windows, and I also have the Do this automatically for files like this from now on option selected. Regardless, this dialog always opens up. I even have the application set in Firefox's Options > Applications area:
Is there a way I can force Firefox to open MP3s in the application of my choice, without getting this stupid dialog?