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SECURITY ADVISORYMOZILLAVERIFIED

PUBLISHER UPDATE · MOZILLA-PRODUCTS-MFSA2026-10

MOZILLA-PRODUCTS-MFSA2026-10 release notes and known issues

MFSA 2026-10 Security Vulnerabilities fixed in Firefox 147.0.4, ESR 140.7.1, and ESR 115.32.1

Scope: Mozilla products. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.

Summary

Official Mozilla security advisory for Mozilla products.

Known issues

Publisher statement

Not stated. The verified publisher record does not contain a known-issues statement.

Affected products and versions

Products

  • Mozilla products

Affected versions

  • 147.0.4
  • 140.7.1
  • 115.32.1

Fixed versions or updates

  • No fixed version is stated in this record.

Recommended action

Review the official publisher document before deployment.

Official publisher evidence

MOZILLAVERIFIED

MFSA 2026-10 Security Vulnerabilities fixed in Firefox 147.0.4, ESR 140.7.1, and ESR 115.32.1

Checked 5 Oct 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.

Open the official publisher source