MFSA2021-53: Security Vulnerabilities fixed in Firefox ESR 91.4.0
Published Dec 7, 2021
·Updated
Security Vulnerabilities fixed in Firefox ESR 91.4.0
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<91.4
91.4
Event History
Dec 7, 2021
Advisory Published
via Mozilla·12:00 AM
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
1
What is the severity of MFSA2021-53?
The severity of MFSA2021-53 includes multiple security vulnerabilities that could potentially affect user data and system integrity.
2
How do I fix MFSA2021-53?
To fix MFSA2021-53, users should update Firefox ESR to version 91.4.0 or later.
3
What versions of Firefox are affected by MFSA2021-53?
MFSA2021-53 affects Firefox ESR versions up to and including 91.4.
4
What types of vulnerabilities are addressed in MFSA2021-53?
MFSA2021-53 addresses various security vulnerabilities, including memory safety issues and potential information leaks.
5
Is it safe to use Firefox ESR versions prior to 91.4 after MFSA2021-53?
It is not safe to use Firefox ESR versions prior to 91.4 after MFSA2021-53 due to the unresolved security vulnerabilities.