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Why has my fingerprint reader stopped working after the update to firefox 30?

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I have a Lenovo B580 with a built in fingerprint reader. I use firefox, it updates automatically. Once it updated to version 30, my fingerprint reader no longer works. Why is this? How do I correct this problem?

I have a Lenovo B580 with a built in fingerprint reader. I use firefox, it updates automatically. Once it updated to version 30, my fingerprint reader no longer works. Why is this? How do I correct this problem?

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The add-on for Firefox may need to be updated to be compatible with Firefox 30. See Lenovo for an update of that fingerprint reader software.