Fixes:
* Folder corruption could cause Thunderbird to freeze and become unusable
* Message corruption could be propagated when reading mbox
* Folder compaction was not abandoned on shutdown
* Folder compaction did not clean up on failure
* Collapsed NNTP thread incorrectly indicated there were unread messages
* Navigating to next unread message did not wait for all messages
to be loaded
* Applying column view to folder and children could break if folder
error occurred
* Remote content notifications were broken with encrypted messages
* Updating criteria of a saved search resulted in poor search performance
* Drop-downs may not work in some places
- remove kmozillahelper support (boo#1226112)
* removed mozilla-kde.patch
* requires xdg-desktop-portal instead
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=783
