Сontainer did not have write permissions to the mounted folder. Therefore, it was empty and i asked the question without understanding it. Now the permissions issue has been resolved and I see the Thunderbird profile folder.
Thank you!
Hello!
I have launched the ich777/thunderbird container on my Synology DS220+. Is there a way to access the Thunderbird profile folder for backup? Can I transfer this folder to another device? Or perhaps there is another better way to back up my mail in Thunderbird?