Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 78.8.0.
* Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968)
* Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969)
* Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978)
* Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973)
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.