Microsoft Fingerprint Reader may look cool and be very useful in storing your passwords, but it's lousy when it comes to working with Firefox. We found this out the hard way last year when we purchased a reader and it didn't work a lick with Firefox.
Now there's a Firefox extension that allows a workaround for the reader software to recognize Firefox as a valid fingerprint capable app. Wee! Yet another way for us to pretend we're Tom Cruise.
Finger Fox [Google Translated from French]