I've recently started maintaining a rewrite of this program here: https://github.com/pendo324/universal-np.
It's very similar to the old version, except I think I'll actually be able to maintain this one. There is also a new version of the extension (which google removed from their store) available here: https://chrome.google.com/webstore/.../lljahlkpnhdopaegadghfjhhkcpdlijg?hl=en&gl=US
Note: the new extension will not work with the old desktop application due to some architectural changes to the way they interact (mostly in an effort to make it easier to maintain).
You will also have to update the Chrome Extension as well as the desktop application.
As always, I'm open to requests!