With Mozilla Thunderbird, the default storage for data is in
C:UsersUser1AppDataRoamingThunderbird.... Even if we want to move a
Profile folder to another path, we have to fill this information inside
as explained in Moving a profile (official documentation):
In the profiles.ini file, locate the entry for the profile you’ve just moved. Change the Path= line to the new location.
How to totally bypass this
C:UsersUser1AppData folder and use Thunderbird as a real portable software?
PS: I don’t want to use the “PortableApps” version. Even if this project seems trustworthy, I’m not sure the “repackaging” script is fully open-source, and anyway, I don’t want to add another layer if we can do it without this.
(As I searched for this since years, now that I found the answer, I share it with the “Q&A-style” StackExchange feature.)
First install it (with the official installer) to your desired path, e.g.
Create another empty folder
Create a shortcut like this:
D:PortableThunderBirdappthunderbird.exe -profile "D:PortableThunderBirdprofile"
Run this shortcut!