From the Menu Bar select File-New-Existing Mail Account If the menu bar is hidden press the alt key to reveal it.

OR...

From the AppMenu (button with 3 horizontal lines) select File-New Message-Existing Mail Account.

FYI: There is no such thing as a Thunderbird account. Thunderbird is email client software. Email account come from email providers.

Thanks for your help But I now have my other email recognized in TBird but when I ask it to download messages it reports that "sending password to the mail server failed as the mail server does not recognize my password. When I use my Isp's webmail service all works fine same password but not with T bird. any further advice please. regards

Please add the troubleshooting information to your post To find the Troubleshooting information:

• Open Help (or click on three-line-icon and select Help)
• Choose Troubleshooting Information
• Use the button Copy to clipboard to select all. Do not check box "Include account names"!
• Paste this in your post.

Please also add the result of these troubleshooting steps to your post

• Does Thunderbird work in TB Safe mode (see Thunderbird Safe Mode)?
• Do you use anti-virus and firewall software? What is the version?
• Who is the email provider?