// ==UserScript==
// @name Disable Opening Files on Drag and Drop
// @namespace th65y5u7u677676u67u
// @include *
// @run-at document-start
// @grant none
// ==/UserScript==

"use strict";
document.addEventListener("dragover", f);
document.addEventListener("drop", f);

function f(e) {
    if (e.dataTransfer.types.includes("Files") && e.target.type != "file") {
        e.preventDefault();
    }
}