MFSA2026-03: Security Vulnerabilities fixed in Firefox ESR 140.7
Security Vulnerabilities fixed in Firefox ESR 140.7
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 140.7 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 140.7
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the severity of MFSA2026-03?
The severity of MFSA2026-03 is classified as high due to multiple security vulnerabilities in Firefox ESR 140.7.
How do I fix MFSA2026-03?
To fix MFSA2026-03, update your Firefox ESR browser to version 140.7 or later.
What types of vulnerabilities are addressed in MFSA2026-03?
MFSA2026-03 addresses various security vulnerabilities in Mozilla Firefox ESR that could potentially lead to code execution or data exposure.
Is MFSA2026-03 applicable to all versions of Firefox?
No, MFSA2026-03 is specifically applicable to Firefox ESR versions up to 140.7.
What should I do if I cannot update my Firefox ESR due to policy restrictions?
If you cannot update your Firefox ESR due to policy restrictions, consider speaking with your IT department about possible workaround solutions or an exception to apply necessary security updates.