Installation working fine until last update. Suddenly getting main password dialog then 2nd grayed out password dialog that leaves main window, mail, other, unresponsive. Running in safe mode and disabling all logins doesn't help. From "safe-mode" dialog will not make changes and restart (nothing happens). "Continue to safe mode" results in blank gray dialog box and grayed out application window. When launched normally will not quit - have to force quit or killall thunderbird (although main dropdown menus still "work" - just nothing happens when they are selected. Mailer now useless. Mac OS X Big Sur 11.6. $ /Applications/Thunderbird.app/Contents/MacOS/thunderbird-bin -safe-mode 1635795540674 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing default_locale: An unexpected property was found in the WebExtension manifest. 1635795540674 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing experiment_apis: An unexpected property was found in the WebExtension manifest. 1635795540906 addons.xpi WARN Add-on {a62ef8ec-5fdc-40c2-873c-223b8a6925cc} is not compatible with application version. 1635795540996 addons.xpi WARN Add-on {a62ef8ec-5fdc-40c2-873c-223b8a6925cc} is not compatible with application version. 1635795541014 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing default_locale: An unexpected property was found in the WebExtension manifest. 1635795541016 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing browser_action: An unexpected property was found in the WebExtension manifest. 1635795541016 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing experiment_apis: An unexpected property was found in the WebExtension manifest. 1635795541142 addons.xpi WARN Add-on tbsync@jobisoft.de is not compatible with application version. 1635795541224 addons.xpi WARN Add-on tbsync@jobisoft.de is not compatible with application version. 1635795541236 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing default_locale: An unexpected property was found in the WebExtension manifest. 1635795541236 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing experiment_apis: An unexpected property was found in the WebExtension manifest. 1635795541366 addons.xpi WARN Add-on dav4tbsync@jobisoft.de is not compatible with application version. 1635795541446 addons.xpi WARN Add-on dav4tbsync@jobisoft.de is not compatible with application version. 1635795541560 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing permissions.0: Unknown permission "compose" 1635795541562 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing permissions.1: Unknown permission "accountsRead" 1635795541562 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing default_locale: An unexpected property was found in the WebExtension manifest. 1635795541562 addons.webextension.<unknown> WARN Loading extension 'null': Reading manifest: Error processing experiment_apis: An unexpected property was found in the WebExtension manifest. 1635795543386 addons.xpi WARN Add-on cardbook@vigneau.philippe is not compatible with application version. 1635795543460 addons.xpi WARN Add-on cardbook@vigneau.philippe is not compatible with application version. 2021-11-01 12:39:03.882 thunderbird-bin[2892:9283319] *** WARNING: Textured window <ToolbarWindow: 0x11b434400> is getting an implicitly transparent titlebar. This will break when linking against newer SDKs. Use NSWindow's -titlebarAppearsTransparent=YES instead. 2021-11-01 12:39:50.522 thunderbird-bin[2892:9283818] WARNING: nextEventMatchingMask should only be called from the Main Thread! This will throw an exception in the future. Terminated: 15 After upgrading I get completely gray folders/accounts, no way to tell where I am. $ /Applications/Thunderbird.app/Contents/MacOS/thunderbird-bin 2021-11-01 12:49:37.505 thunderbird-bin[3034:9291253] *** WARNING: Textured window <ToolbarWindow: 0x119a1cc00> is getting an implicitly transparent titlebar. This will break when linking against newer SDKs. Use NSWindow's -titlebarAppearsTransparent=YES instead.