@blaised Hi blaised - thank you for your wonderful explanations -
I think I will bookmark this thread - there are so informative posts that I can use for any kind future problems that might come.
Today is the National Day of Switzerland (God shall protect all the Nations of the World) so I am not working and I have time for tinking.
blaised, as it was on POP modus during the installation of new O/S I re-opened the accounts on POP modus - but
now as all messages are in … in the new installed Thunderbird - I will change it to IMAP.
So there is an other quick and “dirty” method, which is windows like - and I got now all the messages the new ones (although POP modus) and the old ones too.
And it goes like this:
“Elements” is the external harddisc in which thanks the help of all of you - I could copy thunderbird profile from the crashed o/s
So I opened the Thunderbird Profile directory “axq1rtr.default” copied all the files
then went to the installed Thunderbird of the new o/s system (still Antergos) and through…
… I went to the equivalent new installed Thunderbird profile and there I copied the mentioned files
During this process the system asks “Shall the files (old and new ones) be merged”? - YES
“Shall the files be replaced”? YES
That’s it - Thanks to all again - you were all very helpful and I learned a lot from you.
@ moderators - I will put this thread as Solved - if you could complete the title of this topic - with copying Thunderbird Profile from a crashed System … it would fit better to “history” of this thread.
My sincere thanks to all of you and your time replying to me…
PS. What still not works to embed black the written commands here