Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.12.0. Security Fix(es): * Mozilla: Memory safety bugs fixed in Firefox 103 and 102.1 (CVE-2022-2505) * Mozilla: Directory indexes for bundled resources reflected URL parameters (CVE-2022-36318) * Mozilla: Mouse Position spoofing with CSS transforms (CVE-2022-36319) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.