真っ白（フォルダー、スレッド、メッセージペイン、ダイアログなど）になる現象のバグ報告

Bug 1612414 - after update to TB 68.4.2 from 60.9.1 on mac OS 10.15.2, profiles located on nas will not open (smb mounted profile)
https://bugzilla.mozilla.org/show_bug.cgi?id=1612414

Bug 1625874 - no folders or messages visible, both panes empty
https://bugzilla.mozilla.org/show_bug.cgi?id=1625874

Bug 1628335 - After the update to 68.6, the message and folder pane both blank, but still getting new message alerts
https://bugzilla.mozilla.org/show_bug.cgi?id=1628335

回避策

1578539 - Upgrade from TB 60.8.0 to TB 68.0 breaks UI / blank UI. Workaround delete global-messages-db.sqlite
https://bugzilla.mozilla.org/show_bug.cgi?id=1578539#c50