MFSA2021-53: Security Vulnerabilities fixed in Firefox ESR 91.4.0
First published: Tue Dec 07 2021(Updated: )
Security Vulnerabilities fixed in Firefox ESR 91.4.0
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Firefox ESR | <91.4 | 91.4 |
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Reference Links
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
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.
How do I fix MFSA2021-53?
To fix MFSA2021-53, users should update Firefox ESR to version 91.4.0 or later.
What versions of Firefox are affected by MFSA2021-53?
MFSA2021-53 affects Firefox ESR versions up to and including 91.4.
What types of vulnerabilities are addressed in MFSA2021-53?
MFSA2021-53 addresses various security vulnerabilities, including memory safety issues and potential information leaks.
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.
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