

It is a good idea to periodically backup your profile to a safe location. You can also use the Profile Manager to create a profile wherever you want (but don't create it in the Thunderbird program directory) or to delete or rename one. The first time you start Thunderbird it will automatically create a profile in a default location if it does not already exist. A profile can contain one or more account for mail, RSS, news, etc. Thunderbird stores all personal data such as messages, address books and configuration settings in an OS folder called the profile. See also Profile folder - Firefox and Profile folder - SeaMonkey. This article is about Thunderbird's profile folder.
