Number: AV21-617
Date: 7 December 2021
On 7 December 2021 Mozilla published Security Advisories to address vulnerabilities in the following products:
- Firefox – versions prior to 95
- Firefox ESR – versions prior to 91.4.0
- Thunderbird – versions prior to 91.4.0
The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.
Firefox (MFSA 2021-52)
https://www.mozilla.org/en-US/security/advisories/mfsa2021-52/
Firefox ESR (MFSA 2021-53)
https://www.mozilla.org/en-US/security/advisories/mfsa2021-53/
Thunderbird (MFSA 2021-54)
https://www.mozilla.org/en-US/security/advisories/mfsa2021-54/