MFSA 2020-40 (bsc#1175686)
* CVE-2020-15663 (bmo#1643199)
Downgrade attack on the Mozilla Maintenance Service could have
resulted in escalation of privilege
* CVE-2020-15664 (bmo#1658214)
Attacker-induced prompt for extension installation
* CVE-2020-15669 (bmo#1656957)
Use-After-Free when aborting an operation
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=547
