* changes and additions in MailExtensions
* several bugfixes
* https://www.thunderbird.net/en-US/thunderbird/78.6.0/releasenotes/
MFSA 2020-56 (bsc#1180039))
* CVE-2020-16042 (bmo#1679003)
Operations on a BigInt could have caused uninitialized memory
to be exposed
* CVE-2020-26971 (bmo#1663466)
Heap buffer overflow in WebGL
* CVE-2020-26973 (bmo#1680084)
CSS Sanitizer performed incorrect sanitization
* CVE-2020-26974 (bmo#1681022)
Incorrect cast of StyleGenericFlexBasis resulted in a heap
use-after-free
* CVE-2020-26978 (bmo#1677047)
Internal network hosts could have been probed by a malicious
webpage
* CVE-2020-35111 (bmo#1657916)
The proxy.onRequest API did not catch view-source URLs
* CVE-2020-35112 (bmo#1661365)
Opening an extension-less download may have inadvertently
launched an executable instead
* CVE-2020-35113 (bmo#1664831, bmo#1673589)
Memory safety bugs fixed in Thunderbird 78.6
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=568
