Thunderbird Portable

Hello, I am asking for help with Enigmail migration. I guess the legacy version 78 is required to port the keys from Enigmail to the new PGP format. But I can't find this version anywhere. If I take version 91 directly and try to import my private key, I get an error message even though the key is correct.

The download hash does not match for the German version of
Thunderbird version 68.12.1
at
https://portableapps.com/redirect/?a=ThunderbirdPortableLegacy68&s=s&p=&...

Expected according to the list (GERMAN)

Is this the correct forums to post this question? I've also posted it under General Forums --General Discussion

I've been running Thunderbird Portable Edition from a USB flash drive for about three years. Today, when I tried to start the app, I received the following error message text box:
-----------------------------------------------------------------------------------
Mozilla Thunderbird Portable Edition | PortableApps.com X

Is it safe to simply create an INI file named ThunderbirdPortable.ini, place it next to ThunderbirdPortable.exe and include just one line:
DisableSplashScreen=true
Or maybe it is required to copy the whole content of ThunderbirdPortable.ini from "Other\Source"? I would like to know what I'm doing so I don't ruin the app's portability.

I have stored all files on a Stick and connected it to my Android-Smartphone via a Micro-USB.
A Describtion advices to start the Portable with the ".exe".
But this doesn't work on my Smartphone.
Is there anywhere an APP to start an ".exe" ?
Is there any other way ?

Thanks für ideas or solutions

I have a backup copy from June of a TB portable installation I recently lost. I installed PortableApps, including TB portable, afresh from a download on Sep. 14. 2022 on a USB stick. It would be great to transfer all the account information, passwords, etc., plus a history of e-mails from the last 10 years. What has happened since June is still in my IMAP account and will hopefully be available after reconnection.

I am using Thunderbird Portable as stand-alone installed on hard disk.

For years I have updated on the Help/About Mozilla Thunderbird page. Today I noticed that I was on version 91.1.x and the button said [Update to 91.1.y]. The thing is that I knew the current version was v102, meaning that the updater on the "About Mozilla Thunderbird" page was not working, or was only offering to update to a minor version that was still months out of date.

Windows 10 Pro 32 bit (all updates), Thunderbird portable 102.1.2 (updated and also new clean install.).

I created a new Gmail-account (pop3) whose messages are saved in the global inbox; this setting is saved. I check the mails manually.
Now I want this account to be included when manually fetching messages, and checked the corresponding box in the server settings/advanced of the account:

Tools / Account Settings / ACCOUNT NAME / Server Settings / Advanced / "Include this server when getting new mail".

Is Thunderbird 102.1.0 the stable version?
When I tried downloading the Windows version of a reliable site
(gratissoftware.nl)
they had a message saying that version 91.1.12 is stable
and I better wait dwnlding 102.1.0 until all (possible) errors are solved

Hi, today I just download the latest portable Thunderbird version 102, and I make a install which overwrite my old Thunderbird portable 8x.x (I can't remember the version now, as I just overwrite the old installation folder)

When I try to start the new installed Thunderbird portable, the main window shown up, and I see the left Folder is empty.

See this screen shot image:
https://imgur.com/xfnFzbP