MFSA2026-47: Security Vulnerabilities fixed in Firefox ESR 115.36
Published May 19, 2026
·Updated
Security Vulnerabilities fixed in Firefox ESR 115.36
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<115.36
115.36
Event History
May 19, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of MFSA2026-47?
The severity of MFSA2026-47 is classified as high with a score of 7.
2
What vulnerabilities are addressed in MFSA2026-47?
MFSA2026-47 addresses multiple security vulnerabilities in Mozilla Firefox ESR 115.36.
3
How do I fix MFSA2026-47?
To fix MFSA2026-47, you should update your Mozilla Firefox ESR to version 115.36 or later.
4
When was MFSA2026-47 published?
MFSA2026-47 was published on May 19, 2026.
5
Which software is affected by MFSA2026-47?
The security vulnerabilities described in MFSA2026-47 affect Mozilla Firefox ESR.