How to Copy Thunderbird Email to a Flash Drive
If you want to backup your Thunderbird email message base or distribute a copy to a colleague, it is an easy matter to copy off the messages to a flash drive. Mozilla Thunderbird makes copying your email a simple process. This email client uses the universal MBOX storage type which, unlike Outlook's PST file system, is a plain-text system. This means that even without the Mozilla Thunderbird client installed you could, if necessary, read your emails using a basic text editor. Copying the Thunderbird email message base simply requires you to locate the mail storage location on your computer.
Click "Start" and type "%APPDATA%" (without the quotes) in the search bar. Click "Roaming" when it appears in the menu. Double-click "Thunderbird," then "Profiles."
Double-click your profile name for the email account that you want to copy to the flash drive.
Right-click the "Mail" folder and click "Copy."
Connect your USB Flash drive to your computer. Click "Start," then "Computer."
Double-click the USB Flash drive in the "My Computer window." Right-click the drive and click "Paste." This pastes the email from Thunderbird to your flash drive.