MFSA2025-93: Security Vulnerabilities fixed in Firefox ESR 115.31
Published Dec 9, 2025
·Updated
Security Vulnerabilities fixed in Firefox ESR 115.31
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<115.31
115.31
Event History
Dec 9, 2025
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 is the severity of MFSA2025-93?
The severity of MFSA2025-93 includes multiple security vulnerabilities that could potentially affect the integrity and confidentiality of data in Firefox ESR.
2
How do I fix MFSA2025-93?
To fix MFSA2025-93, users should update to Firefox ESR version 115.31 or later.
3
What versions of Firefox ESR are affected by MFSA2025-93?
MFSA2025-93 affects all versions of Firefox ESR prior to 115.31.
4
What types of vulnerabilities are addressed in MFSA2025-93?
MFSA2025-93 addresses various security vulnerabilities including potential memory safety issues and performance concerns.
5
Is a workaround available for MFSA2025-93?
There are no known workarounds for MFSA2025-93; updating to the latest version is the recommended solution.