Advisory Published

MFSA2021-23: Security Vulnerabilities fixed in Firefox 89

First published: Tue Jun 01 2021(Updated: )

Security Vulnerabilities fixed in Firefox 89

Affected SoftwareAffected VersionHow to fix
Firefox<89
89

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Frequently Asked Questions

  • What is the severity of MFSA2021-23?

    The severity of MFSA2021-23 is categorized as high, indicating a significant security risk.

  • How do I fix MFSA2021-23?

    To fix MFSA2021-23, update your Firefox browser to version 89 or later.

  • What vulnerabilities are addressed in MFSA2021-23?

    MFSA2021-23 addresses critical security vulnerabilities that could allow for exploits or unauthorized access.

  • Which versions of Firefox are affected by MFSA2021-23?

    Versions of Firefox prior to 89 are affected by MFSA2021-23 and should be updated.

  • What defensive measures can I take regarding MFSA2021-23?

    In addition to updating Firefox, consider using additional security tools like firewalls and antivirus software to enhance protection.

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