I am developing the “Tab List” extension. It is a small extension that allows you to view open documents in a list and when clicking on the document it opens. It is very useful when you have many tabs. The problem I have found is when using remote documents. The openFile() method (Workspace - Nova) does not work because the uri that is sent has this format: ftp://:0/file_path/document.html
I invite you to try the extension (Tab List | Nova Extensions) so you can check it out.