MFSA2025-73: Security Vulnerabilities fixed in Firefox 143
Published Sep 16, 2025
·Updated
Security Vulnerabilities fixed in Firefox 143
Affected Software
1 affected componentFixes available
Mozilla Firefox<143
143
Event History
Sep 16, 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 MFSA2025-73?
The severity of MFSA2025-73 is classified as high due to multiple security vulnerabilities that could potentially allow remote code execution.
2
How do I fix MFSA2025-73?
To fix MFSA2025-73, update your Mozilla Firefox to version 143 or later.
3
What types of vulnerabilities are addressed in MFSA2025-73?
MFSA2025-73 addresses several security vulnerabilities including potential buffer overflows and memory safety issues.
4
Who is affected by MFSA2025-73?
Users of Mozilla Firefox versions prior to 143 are affected by MFSA2025-73 and are urged to upgrade.
5
When was MFSA2025-73 published?
MFSA2025-73 was published in 2025 as part of Mozilla's security advisories.