Advisory Published

MFSA2017-21: Security vulnerabilities fixed in Firefox 56

First published: Thu Sep 28 2017(Updated: )

Security vulnerabilities fixed in Firefox 56

Affected SoftwareAffected VersionHow to fix
<56
56

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Frequently Asked Questions

  • What is MFSA2017-21?

    MFSA2017-21 is a security vulnerability that affects Mozilla Firefox version 56.

  • What is the severity of MFSA2017-21?

    MFSA2017-21 has a severity level of critical.

  • How can I fix the MFSA2017-21 vulnerability?

    To fix the MFSA2017-21 vulnerability, you should update your Mozilla Firefox browser to version 56 or later.

  • Where can I find more information about MFSA2017-21?

    You can find more information about the MFSA2017-21 vulnerability on the Mozilla Security Advisories website at https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/.

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