macOS (and I assume Windows and Linux as well) supports local URL schemas. For instance, Apple supports the "applefeedback://" URL as a way to launch the macOS Feedback Assistance app. If I have a link to this on a web page, or if I put it in a bookmark, Firefox will ask for confirmation and will then launch Feedback Assistant. This part works great. But if I type that URL into the location bar, Firefox always sends it to my configured search engine. It doesn't recongize it as a valid URL. And in the popup list of suggestions, there is no option to just go there and not search for it. See the attached screen shot. I don't want to disable location-bar searching altogether, because it is really useful, but I think there should be a way, on a case-by-case basis, to tell Firefox that I really want it to treat the entire text as a URL. The simplest approach is probably to have an extra row on the popup suggestion list that I can click on to open the text as a URL or produce an error if there is nothing in Firefox or the OS that can resolve it. Hopefully this won't be too difficult to support. I think it would be extremely useful.