The email client Mozilla Thunderbird uses a similar structure for storing data as the Firefox web browser. It uses profiles directories that are saved by default to the Thunderbird folder of the user directory of the operating system.
There are some reasons why some users may want to move the data from the Thunderbird folder to another custom folder.
Some that instantly come to mind are running out of storage on the primary hard drive which you could resolve by moving the profile folder to a different partition or hard drive. And if you like security, you could move it to an encrypted folder or an encrypted hard drive instead to protect email access.
Whatever it may be it turns out to be very, very easy to move a single profile or even all profiles from the default location to another one.
Recent versions of Thunderbird make it even easier. Here is what you need to do:
Thunderbird should now display all emails and accounts of the profile when you run it (using the profile manager). If it is the only profile, remove the -p parameter from startup again to speed up the start.
The first step is to close the Thunderbird email client so that it will not write data to the profile folder anymore. The default location of the Thunderbird profile folder depends on the operating system in use, below is a list of common locations:
Copy one or several of the Thunderbird profiles to the new location. Now open up the file profiles.ini in the original folder and edit the path pointing to the new profile folder locations accordingly.
You also need to change the parameter IsRelative=1 to IsRelative=0. What this does is change the path value that Thunderbird accepts for profile links from the relative format to full format. So, instead of something like Profiles/xyu.default, you have to point to the full path, e.g., c:\profiles\xyu.default instead.
Please note that this is valid for all profiles which means that you need to add the full path (e.g., c:\thunderbird\profiles\profile.code\ in the Windows operating system) to profiles that are kept in the default location. Start the Thunderbird, email client. If everything worked well, it should display the emails and other data as usual for the profile.
If that did not work, retrace the steps and make sure you have set the correct new profile directory in the profiles.ini file listed in the user folder.
There is a second option that you can make use of. Instead of editing the profiles.ini file, you can also create a symbolic link between the new location of the profile and the old. You can use a program like Symbolic Link Creator for that.
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