MFSA2025-89: Security Vulnerabilities fixed in Firefox ESR 115.30
Published Nov 11, 2025
·Updated
Security Vulnerabilities fixed in Firefox ESR 115.30
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<115.30
115.30
Event History
Nov 11, 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 vulnerabilities are addressed in MFSA2025-89?
MFSA2025-89 addresses several security vulnerabilities found in Firefox ESR 115.30.
2
What is the severity of MFSA2025-89?
The severity of the vulnerabilities addressed in MFSA2025-89 varies but is important enough to warrant an update.
3
How do I fix MFSA2025-89?
To fix MFSA2025-89, update your Firefox ESR to version 115.30 or later.
4
Which versions of Firefox ESR are affected by MFSA2025-89?
MFSA2025-89 affects versions of Firefox ESR prior to 115.30.
5
Is it necessary to update for MFSA2025-89?
Yes, it is highly recommended to update to avoid potential exploits related to the vulnerabilities in MFSA2025-89.