I can't find a contact person, and the Mozilla account name has been changed. Is that normal? Thank you for your help and answers. I hope I can continue writing to you in German as well? Thunderbird Portable Help Question: There was a number after my email address, like "Email" and "1954." Who is that? Is that normal? Question: Thunderbird Developer Toolbox: Can you see my emails in the program? Question: Are there any German-speaking Thunderbird users left? Questions: Thunderbird Portable The archive option isn't updating? How long does the backup take? Different Thunderbird versions display a programmed year date in the archive option. For example, 2021 in one program and 2024 in another. Is that normal? I can't change anything. It's as if it's accessing some kind of backup and maybe even sharing it, and I don't know what's correct. Question: Update Channel Ellipse Update Channel esr. Previously, there were different channels. Isn't another channel better? I've read that it's more stable than switching. Is that true? Information regarding the question below? 140.9.0esr (64-bit) Thunderbird is up to date. You are currently on the esr update channel. I'm experiencing stability issues with this one. Thunderbird, Portable Edition portableapps - 1.0 Thunderbird is up to date. You are currently on the release update channel. New Download General Information In Thunderbird Portable, there is a help page: https://support.mozilla.org/de/products/thunderbird Please reply and thank you very much for your help.