Hello! The Diigo Chrome extension won't work on New Advent's Catholic Encyclopedia, a rather simple website. Click on the extension button and nothing happens. Very weirdly, a corrupted version of the menu appears at the bottom of the page and not as a pop-up but within the text itself! Any work-arounds?

Try it on this entry and see for yourself: http://www.newadvent.org/cathen/09076a.htm