How to change columns shown in File Open dialog
I am using Thunderbird and the File Open dialog shows Date Added . I would like to change to Last Modified (or the equivalent) . Is this a Finder setting, macOS or Thunderbird specific? How can that setting be changed?
When that dialog is displayed you can indeed choose what fields are displayed.
Just right-click on one of the column headings (next to "Name, Size," etc) and select from the list in the pop-up menu.
It should remember that selection, at least for that app.