MFSA2025-39: Security Vulnerabilities fixed in Firefox for iOS 139
Published May 20, 2025
·Updated
Security Vulnerabilities fixed in Firefox for iOS 139
Affected Software
2 affected components
All of the following
Mozilla Firefox=139
apple iOS
Event History
May 20, 2025
Advisory Published
via Mozilla·12:00 AM
Frequently Asked Questions
1
What is the severity of MFSA2025-39?
The severity of MFSA2025-39 is classified as critical due to the potential for remote code execution.
2
How do I fix MFSA2025-39?
To fix MFSA2025-39, update Firefox for iOS to version 139 or later.
3
Which software is affected by MFSA2025-39?
MFSA2025-39 affects Firefox version 139 running on Apple iOS and iPadOS.
4
What types of vulnerabilities are addressed in MFSA2025-39?
MFSA2025-39 addresses multiple security vulnerabilities, including those that could allow for remote exploitation.
5
Is it safe to use Firefox for iOS version 139 after MFSA2025-39?
After applying the update to version 139, it is considered safe to use Firefox for iOS.