Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 60.6.1. Security Fix: * Mozilla: Memory safety bugs fixed in Firefox 66 and Firefox ESR 60.6 * Mozilla: Use-after-free when removing in-use DOM elements * Mozilla: Type inference is incorrect for constructors entered through on-stack replacement with IonMonkey * Mozilla: IonMonkey leaks JS ...