The following code works in Google Chrome beta as well as IE 7. However, Firefox seems to have a problem with this. I\'m suspecting it to be a problem of how my CSS files ar
For this font in particular you should be using the Google Font API:
http://code.google.com/webfonts/family?family=Droid+Sans
If you still want to use FontSquirrel's kit generator, use the Smiley hack option to eliminate local font problems. After you've generated a kit, check that the generated demo.html works in FireFox. I bet it does. Now upload it to your server -- I bet it works there too since FontSquirrel is awesome.
However, if you broke the generated kit code while integrating it into your project, use the standard methods of debugging -- check for 404's and go line by line until you find the problem. WOFF should definitely work in FF, so thats a good place to start.
Finally, if none of this works, update FireFox. I wrote all this assuming that you are using the latest; but you didn't specify what version you are checking in, so that could be your problem too.