This update for MozillaFirefox fixes the following issues: - Firefox Extended Support Release 78.8.0 ESR * Fixed: Various stability, functionality, and security fixes MFSA 2021-08 * CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect * CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect * CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources * CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8