Security update for MozillaThunderbird

This update for MozillaThunderbird version 60.8 fixes the following issues: Security issues fixed: - CVE-2019-9811: Sandbox escape via installation of malicious language pack (bsc#1140868). - CVE-2019-11711: Script injection within domain through inner window reuse (bsc#1140868). - CVE-2019-11712: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects (bsc#1140868). - CVE-2019-11713: Use-after-free with HTTP/2 cached stream (bsc#1140868). - CVE-2019-11729: Empty or malformed p256-ECDH public keys may trigger a segmentation fault (bsc#1140868). - CVE-2019-11715: HTML parsing error can contribute to content XSS (bsc#1140868). - CVE-2019-11717: Caret character improperly escaped in origins (bsc#1140868). - CVE-2019-11719: Out-of-bounds read when importing curve25519 private key (bsc#1140868). - CVE-2019-11730: Same-origin policy treats all files in a directory as having the same-origin (bsc#1140868). - CVE-2019-11709: Multiple Memory safety bugs fixed (bsc#1140868). Non-security issued fixed: - Calendar: Problems when editing event times, some related to AM/PM setting in non-English locales