MFSA2026-02: Security Vulnerabilities fixed in Firefox ESR 115.32
Published Jan 13, 2026
·Updated
Security Vulnerabilities fixed in Firefox ESR 115.32
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<115.32
115.32
Event History
Jan 13, 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 security vulnerabilities are addressed in MFSA2026-02?
MFSA2026-02 addresses multiple security vulnerabilities fixed in Firefox ESR 115.32.
2
What versions of Firefox are affected by MFSA2026-02?
Firefox ESR versions up to and including 115.32 are affected by MFSA2026-02.
3
How do I fix the vulnerabilities mentioned in MFSA2026-02?
To fix the vulnerabilities in MFSA2026-02, update your Firefox ESR to version 115.32 or later.
4
Is there a risk if I'm using a version prior to 115.32 mentioned in MFSA2026-02?
Yes, using a version prior to 115.32 exposes you to the vulnerabilities outlined in MFSA2026-02.
5
Where can I find more information about MFSA2026-02 and the vulnerabilities?
More information about MFSA2026-02 can be found in the Mozilla security advisories.