A simple search bar. It doesn't need to have auto-fill suggestions, like the main one does. I've just found myself a couple times wanting to double-check the clue when I'm about to search; and to do that you have to click out, open the pop-up again, then remember it, close it, and search again.
I have to open a couple of extra tabs because when I try to open a quest in another tab just through right-clicking, it gives me the 404, since it's not a full window. Would be nice to have the search bar, with maybe a pop-up tab for Firefox users that sends to the thing you searched for. I dunno. Would also be nice to have a list of the things you already found. Sometimes I come back after way too long and I don't remember what I've checked, but that's relatively minor, I guess.