Does Troubleshoot mode from the Help menu improve matters?

Not at all :( I think the starting process is slowing down because of this error message Component returned failure code: 0x80550013 [nsIMsgPluggableStore.createFolder]

Thanks for the details. The error is noted in two bug reports but slowness is not mentioned as a symptom, so I don't think that is a causal factor.

• https://bugzilla.mozilla.org/show_bug.cgi?id=1653789
• https://bugzilla.mozilla.org/show_bug.cgi?id=1777276

Exactly how long is startup?

But 0x80550013 [nsIMsgPluggableStore.createFolder] could be causing your message display issues. Does Bug 1801562 describe your problem?- Yellow remote content notification bar sometimes fails to appear although `View message body as > Original HTML` is already set (but clicking that again will make it appear)

My tb has a long starting time after updating to ventura, too. It´s about 30 sec. I tryed deleting all caches and the startup cache debug mode disabled all plugins and deleted all themes deleted all calendars and created a default calendar tb 109 beta looked for the preferences and deleted ligthning prefs disabled looking for proxies and disabled dns over https

now i started tb with the terminal and got a lot of this errors:

2023-01-12 09:17:07.307 thunderbird-bin[14467:896407] Rethrowing (from nts_ValueForProperty:) NSInternalInconsistencyException: Unhandled error (NSCocoaErrorDomain, 134092) occurred during faulting and was thrown: Error Domain=NSCocoaErrorDomain Code=134092 "(null)" CoreData: error: Unhandled error occurred during faulting: Error Domain=NSCocoaErrorDomain Code=134092 "(null)" ({ })

Chris, exactly how long is startup?

"If you turn on Google Contact Sync in the central system settings, the whole contact sync service runs amok. And this also causes Thunderbird to stall for minutes on each startup" according to https://support.mozilla.org/en-US/questions/1396925#answer-1556996

The startup takes about 50 seconds. There is no Google Contact Sync installed.

Chris, did you check the Konsole? Which errors did you get while starting tb?

I get 2 repeating entries while starting tb - about 21 errors/sec:

• error: Unhandled error occurred during faulting: Error Domain=NSCocoaErrorDomain Code=134092 "(null)" ({

})

• Rethrowing (from nts_ValueForProperty:) NSInternalInconsistencyException: Unhandled error (NSCocoaErrorDomain, 134092) occurred during faulting and was thrown: Error Domain=NSCocoaErrorDomain Code=134092 "(null)"

Also looked for google services. I had google services installed on the machine before upgrading to ventura. So searched for files. There was only one file left: /System/Library/Accounts/UI/GoogleAccountSettings.bundle But it seems that its a file from Ventura. So I tried to make a google account, to start tb and to delete the account again. But there was no change with the starting time.

The timecode in the error console shows that during the starting process it takes 45.892 seconds to check addons, but there are no addons installed but there seems to be a problem with "thunderbird Addon with ID amazon@search.mozilla.org already installed"

16:06:56.656 1673881616656 addons.xpi WARN Checking /Applications/Thunderbird.app/Contents/Resources/distribution/extensions for addons 16:07:42.548 Successfully loaded OpenPGP library librnp.dylib version 0.16+git20220124.f06439f7.MZLA from /Applications/Thunderbird.app/Contents/MacOS/librnp.dylib RNPLib.jsm:100:15 16:07:42.554 Found 0 public keys and 0 secret keys (0 protected, 0 unprotected) RNPLib.jsm:301:15 16:07:42.560 services.settings: Failed to load last_modified.json: TypeError: NetworkError when attempting to fetch resource. Utils.jsm:330 16:07:42.748

Component returned failure code: 0x80550013 [nsIMsgPluggableStore.createFolder] 10 Pop3IncomingServer.jsm:135

16:07:42.960 Trying to load /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib OTRLib.jsm:64:11 16:07:43.009 Successfully loaded OTR library /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib OTRLib.jsm:72:13 16:07:43.030 tb.account.size_on_disk - Truncating float/double number. 2 16:07:50.814 Unbekannte Eigenschaft '-moz-border-radius'. Deklaration ignoriert.

The timecode in the error console shows that during the starting process it takes 45.892 seconds to check addons, but there are no addons installed but there seems to be a problem with "thunderbird Addon with ID amazon@search.mozilla.org already installed"

16:06:56.656 1673881616656 addons.xpi WARN Checking /Applications/Thunderbird.app/Contents/Resources/distribution/extensions for addons 16:07:42.548 Successfully loaded OpenPGP library librnp.dylib version 0.16+git20220124.f06439f7.MZLA from /Applications/Thunderbird.app/Contents/MacOS/librnp.dylib RNPLib.jsm:100:15 16:07:42.554 Found 0 public keys and 0 secret keys (0 protected, 0 unprotected) RNPLib.jsm:301:15 16:07:42.560 services.settings: Failed to load last_modified.json: TypeError: NetworkError when attempting to fetch resource. Utils.jsm:330 16:07:42.748

Component returned failure code: 0x80550013 [nsIMsgPluggableStore.createFolder] 10 Pop3IncomingServer.jsm:135

16:07:42.960 Trying to load /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib OTRLib.jsm:64:11 16:07:43.009 Successfully loaded OTR library /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib OTRLib.jsm:72:13 16:07:43.030 tb.account.size_on_disk - Truncating float/double number. 2 16:07:50.814 Unbekannte Eigenschaft '-moz-border-radius'. Deklaration ignoriert.

I'm almost sure that the error message

Component returned failure code: 0x80550013 [nsIMsgPluggableStore.createFolder] 10 Pop3IncomingServer.jsm:135

is not the reason that Thunderbird is starting slow.

If I start Thunderbird using the terminal /Applications/Thunderbird.app/Contents/MacOS/thunderbird-bin -P

the error is still there, but Thunderbird starts within a second.

16:27:14.802 1673882834802 addons.xpi WARN Checking /Applications/Thunderbird.app/Contents/Resources/distribution/extensions for addons 16:27:15.611 Successfully loaded OpenPGP library librnp.dylib version 0.16+git20220124.f06439f7.MZLA from /Applications/Thunderbird.app/Contents/MacOS/librnp.dylib RNPLib.jsm:100:15 16:27:15.616 Found 0 public keys and 0 secret keys (0 protected, 0 unprotected) RNPLib.jsm:301:15 16:27:15.621 services.settings: Failed to load last_modified.json: TypeError: NetworkError when attempting to fetch resource. Utils.jsm:330 16:27:15.697

Component returned failure code: 0x80550013 [nsIMsgPluggableStore.createFolder] 10 Pop3IncomingServer.jsm:135

16:27:15.901 tb.account.size_on_disk - Truncating float/double number. 2 16:27:15.904 Trying to load /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib OTRLib.jsm:64:11 16:27:15.952 Successfully loaded OTR library /Applications/Thunderbird.app/Contents/MacOS/libotr.dylib