MFSA2026-36: Security Vulnerabilities fixed in Firefox ESR 140.10.1
Published Apr 28, 2026
·Updated
Security Vulnerabilities fixed in Firefox ESR 140.10.1
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<140.10.1
140.10.1
Event History
Apr 28, 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 MFSA2026-36?
MFSA2026-36 addresses multiple security vulnerabilities fixed in Firefox ESR 140.10.1.
2
How do I update Firefox ESR to address MFSA2026-36?
To address MFSA2026-36, update your Firefox ESR to version 140.10.1.
3
What versions are affected by MFSA2026-36?
Firefox ESR versions prior to 140.10.1 are affected by MFSA2026-36.
4
Is it mandatory to fix MFSA2026-36?
It is highly recommended to fix MFSA2026-36 to protect against potential security threats.
5
Where can I find more details about MFSA2026-36?
For more details about MFSA2026-36, please refer to the Mozilla security advisory.