Security update for MozillaThunderbird (important)

This update for MozillaThunderbird to version 60.0 fixes the following issues: These security issues were fixed: - CVE-2018-12359: Prevent buffer overflow using computed size of canvas element bsc1098998. - CVE-2018-12360: Prevent use-after-free when using focus bsc1098998. - CVE-2018-12361:...