I'm not sure what "column" you would like and where.
A folder icon would be sufficient in the hit list.
But if one puts in a folder one URL named "folder folder's name (keywords)" to find, that should be sufficient.
There was a very nice "open parent folder" extension to right click that URL and open the folder it's in.
But Mozilla killed its developer.
The only thing needed is not killing developers.
I'm not sure what "column" you would like and where.
A folder icon would be sufficient in the hit list.
But if one puts in a folder one URL named "folder folder's name (keywords)" to find, that should be sufficient.
There was a very nice "open parent folder" extension to right click that URL and open the folder it's in.
But Mozilla killed its developer.
The only thing needed is not killing developers.