I was fed up with the URLs in the bibliography taking up so much space on the page, and I found that if in Endnote you go into Edit-Output styles- Edit “style you’re using”- bibliography/templates you can select one of the fields, such as URL, by dragging over it, then select a new font size in the style window at the top, and reduce font size to say 9 point. The field name becomes 9 point. Then close and save, go back to your document, update citations and bibliography from the Endnote dialogue, and hey presto: your URLs in the document bibliography are now all 9 point. Ain’t that great?