Recently on my mac laptop Thunderbird indicated a new version available and I installed it. Now when it runs the application is unusable. The normal sequence when it starts up is I enter passwords for the various accounts I have configured (a few google, a few imap), the 'Password Required' dialog window is raised a few times as needed and then email begins to come in. After the upgrade now the app gets locked in a weird situation where the title bar 'Password Required - Mozilla Thunderbird' is right above the main window but mail email window is on top of it. Clicking the 'Password Required' title bar does not raise that window, it just remains. If I drag that title bar it drags both it and the main email window together. If I click on the tabs in the main window nothing happens (well, they kind of blink). I'm running Mac OS 11.6.

Also, on that title bar for its window decorations only the minimize one is enabled. When I click it the whole main-window-plus-Password-Required-titlebar is minimized. These windows are somehow stuck/merged together...