Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0. Security Fix: * Mozilla: Content Security Policy violation report could have contained the destination of a redirect * Mozilla: Content Security Policy violation report could have contained the destination of a redirect * Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 * Mozilla: MediaError message property could have leaked information about cross-origin resources For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.