Just a quick update today on an old chromium tweak which I have found useful. If you are using chromium and need a dual view, you can add this as a bookmark to accomplish that
javascript:A14nH=location.href;L3f7=prompt('Choose%20File%201',A14nH);R1Gh7=prompt('Choose%20File%202',L3f7);if(L3f7&&R1Gh7){Fr4Q='';with(document){write(Fr4Q);void(close())}}else{void(null)}
Once the bookmark is activated, it will ask what link you would like in the first window, and then ask what link in the second. Told you it was a little thing 🙂