Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 60.3.0. Security Fix: * Mozilla: Memory safety bugs fixed in Firefox 63 and Firefox ESR 60.3 * Mozilla: Crash with nested event loops * Mozilla: Integer overflow during Unicode conversion while loading JavaScript * Mozilla: Memory safety bugs fixed in Firefox ESR 60.3 For more details about the security issue, including the impact, a CVSS score, and other related information, refer to the CVE page listed in the References section. Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Bob Owen, Boris Zbarsky, Calixte Denizet, Jason Kratzer, Jed Davis, Taegeon Lee, Philipp, Ronald Crane, Raul Gurzau, Gary Kwong, Tyson Smith, Raymond Forbes, Bogdan Tara, Nils, r, and Daniel Veditz as the original reporters.