Log Message:
Update to 60.5.1

Changelog:
60.5.1
Fixed
CalDav access to some servers not working

#CVE-2018-18500: Use-after-free parsing HTML5 stream
#CVE-2018-18505: Privilege escalation through IPC channel messages
#CVE-2016-5824: DoS (use-after-free) via a crafted ics file
#CVE-2018-18501: Memory safety bugs fixed in Firefox 65, Firefox ESR 60.5, and \ 
Thunderbird 60.5

60.5.0
New
FileLink provider WeTransfer to upload large attachments

Thunderbird now allows the addition of OpenSearch search engines from a local \ 
XML file using a minimal user inferface: [+] button to select a file an add, [-] \ 
to remove.

More search engines: Google and DuckDuckGo available by default in some locales

During account creation, Thunderbird will now detect servers using the Microsoft \ 
Exchange protocol. It will offer the installation of a 3rd party add-on (Owl) \ 
which supports that protocol.

Fixed
Thunderbird now compatible with other WebExtension-based FileLink add-ons like \ 
the Dropbox add-on

Crash when using custom sound for new email notification

WebExtension-based dictionaries from addons.mozilla.org not working in Thunderbird

Calendar: Printing of calendars not working

#CVE-2018-18356: Use-after-free in Skia
#CVE-2019-5785: Integer overflow in Skia
#CVE-2018-18335: Buffer overflow in Skia with accelerated Canvas 2D
#CVE-2018-18509: S/MIME signature spoofing