Thunderbird creates a folder in your e-mail account called Templates. In my screenshot below, you can see that I have a Templates folder in my Local Folders. I have all my e-mail accounts save templates in this folder, but the default is a Templates folder for each account. The location of the Templates folder is determined by this setting: Right-click your account in the normal folder view of Thunderbird and choose '''Settings'''. Select '''Copies & Folders''' on the left side for the account. The bottom item that can be set on the right side is the location to save templates to. Default is '''Templates Folder on''' the account in question.