Yes, thanks, I have seen that option, but what I want to know is how to open the folder where the attachment are downloaded.
In that view, I see the list of attachments, and if I click on one of them, I can go to original email or open the attachment.
When I receive an email with several attachments, I download all on a system folder, then I need to open that folder. On Thunderbird I can achieve it using Ctrl + J, then I see an icon to open that system folder.
Example of how to achieve this on Thunderbird:
It you see the grey folder on the list, it opens the Windows folder where I downloaded those attachments.
Attachments that have been downloaded are stored within the database. You can access them from the individual message, or in the Attachments section. These are not accessible with Windows Explorer.
If you have saved the attachments, that is something different, and they will be in whichever folder on your computer you selected. You can open Windows Explorer and navigate to that folder.