Premise: I don't think Mangago will shut down but since everyone is talking about it, here's a method to download your lists without any programs.
1. With your PC open Mangago on Google Chrome. This will work ONLY for lists!
2. Open your manga list. I opened "a" for this example.
3. Press F12 (or right click with your mouse and select Inspec......
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
How to download your lists