Digital Persona is no longer going to support their product. Here's their official release: "Thank you for contacting DigitalPersona. There will be no update releases for DigitalPersona Personal in the future. There will be no updates for Firefox 4 nor Internet Explorer 9. IF they work they work, if they do not work with DPPersonal, then you will have to decide to either keep DPPersonal and forgo Firefox 4 or IE 9, or vice versa. DigitalPersona is leaving the consumer market and is focusing on business applications. In fact, DigitalPersona Personal will not longer be supported after Mid-April of this year. We apologize for any inconvenience this might cause.

Here's a workaround: There is an add-on called Fingerfox SE, latest version is 2.20.2. This add-on, in conjuction with DigitalPersona personal, will resolve the problem. In FireFox disable DigitalPersona extension. When you go to a website with a login screen, once you click the icon on the bottom right you will get the fingerfox popup. DO NOT ENTER YOUR CREDENTIALS IN THIS POPUP, instead swipe your finger on the figerprint reader which will activate the Digital Persona utility. Enter your credentials in Digital Persona personal and they will be transferred to FingerFox. Via this support thread: https://support.mozilla.com/en-US/questions/770177#answer-151936

Hello Efreak, I install the add on called Fingerfox SE. It solved my problem. It really works in conjuction with Digital Persona. http://amews.net/products/fingerfox/download/ Thanks.