MFSA2022-05: Security Vulnerabilities fixed in Firefox ESR 91.6

Published Feb 8, 2022
·
Updated

Security Vulnerabilities fixed in Firefox ESR 91.6

Affected Software

1 affected componentFixes available
Mozilla Firefox ESR<91.6
91.6

Event History

Feb 8, 2022
Advisory Published
via Mozilla·12:00 AM

Frequently Asked Questions

1

What is the severity of MFSA2022-05?

The severity of MFSA2022-05 is high, addressing critical security vulnerabilities in Firefox ESR 91.6.

2

How do I fix MFSA2022-05?

To fix MFSA2022-05, update your Firefox ESR to version 91.6 or later.

3

What types of vulnerabilities are included in MFSA2022-05?

MFSA2022-05 includes various security vulnerabilities that can potentially lead to arbitrary code execution and data theft.

4

Is MFSA2022-05 applicable to all versions of Firefox?

MFSA2022-05 specifically applies to Firefox ESR version 91.6, not to the regular versions of Firefox.

5

What should I do if I can't update to Firefox ESR 91.6 due to compatibility issues?

If you cannot update to Firefox ESR 91.6, consider using an alternative browser or applying mitigations as recommended by Mozilla until an update is possible.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203