Those settings are set by the mail provider. As a mail client Thunderbird must use what the provider has allowed.

So no, I nor anyone else, can supply the port settings required for your unnamed email providers accounts. Thunderbird has a large database of settings for various providers but I can look because you did not name.

Google is my provider

In hat case you don't need to do anymore than let Thunderbird configure your account for you using the settings here https://autoconfig.thunderbird.net/v1.1/gmail.com

If your account set up is not working for some reason, the most likely problem is you third party antivirus product. Defender rarely causes issues. Third party products vary a lot over time, but my experience is Norton's will always cause account set up failure. Others the result varies.

# Numbered list itemHi, To install Firefox, you can check out the following articles based on your platform or operating system you're using.

• Install Firefox on Windows
• Download Firefox on Windows from the Microsoft Store
• Install Firefox on Mac
• Install Firefox on Linux
• Install Firefox on Android device using Google Play
• Install Firefox on iPad, iPhone, or iPod

To update Firefox to the the latest version, please check out Update Firefox to the latest release.

What has this to do with the topic at hand? Did you perhaps post it in the wrong topic? I did check your history and his is the only thing you have ever posted in this forum, so I got nothing useful there.