MFSA2025-95: Security Vulnerabilities fixed in Thunderbird 146
Published Dec 9, 2025
·Updated
Security Vulnerabilities fixed in Thunderbird 146
Affected Software
1 affected componentFixes available
Mozilla Thunderbird<146
146
Event History
Dec 9, 2025
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
1
What is the severity of MFSA2025-95?
The severity of MFSA2025-95 has been classified as high, indicating significant potential risks associated with the vulnerabilities.
2
How do I fix MFSA2025-95?
To fix MFSA2025-95, update your Thunderbird to version 146 or later.
3
Which versions of Thunderbird are affected by MFSA2025-95?
MFSA2025-95 affects all versions of Thunderbird up to and including version 146.
4
What types of vulnerabilities are addressed in MFSA2025-95?
MFSA2025-95 addresses several security vulnerabilities that impact the stability and security of Thunderbird.
5
Is it safe to continue using Thunderbird without addressing MFSA2025-95?
Continuing to use Thunderbird without addressing MFSA2025-95 could expose your system to security risks.