MFSA2026-104: Security Vulnerabilities fixed in Firefox 157.0.1

Published Oct 6, 2026
·
Updated

Security Vulnerabilities fixed in Firefox 157.0.1

Affected Software

1 affected componentFixes available
Mozilla Firefox<157.0.1
157.0.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 157.0.1
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 157.0.1

Event History

Oct 6, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What severity is assigned to this advisory?

The advisory is rated medium severity (4).

2

When was this advisory published and last modified?

It was published on 2026-10-06 and was last modified on 2026-10-06.

Company

Resources

Contact

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