- Mozilla Thunderbird 78.3.1
* fix crash in nsImapProtocol::CreateNewLineFromSocket (bmo#1667120)

- Mozilla Thunderbird 78.3.0
MFSA 2020-44 (bsc#1176756)
* CVE-2020-15677 (bmo#1641487)
Download origin spoofing via redirect
* CVE-2020-15676 (bmo#1646140)
XSS when pasting attacker-controlled data into a
contenteditable element
* CVE-2020-15678 (bmo#1660211)
When recursing through layers while scrolling, an iterator
may have become invalid, resulting in a potential use-after-
free scenario
* CVE-2020-15673 (bmo#1648493, bmo#1660800)
Memory safety bugs fixed in Thunderbird 78.3
- requires NSPR >= 4.25.1
- removed obsolete thunderbird-bmo1664607.patch

- Mozilla Thunderbird 78.2.2
https://www.thunderbird.net/en-US/thunderbird/78.2.2/releasenotes
- added thunderbird-bmo1664607.patch required for builds w/o updater
(boo#1176384)

- Mozilla Thunderbird 78.2.1
* based on Mozilla's 78 ESR codebase
* many new and changed features
https://www.thunderbird.net/en-US/thunderbird/78.0/releasenotes/#whatsnew
* built-in OpenPGP support (enigmail neither required nor supported)
- added platform patches: