Horse – The Organized Browser(browser.horse)

    // ==UserScript==
    // @name         Click opens in new foreground tab
    // @namespace    http://tampermonkey.net/
    // @version      2024-11-12
    // @description  Click opens in new foreground tab
    // @author       You
    // @match        *://*/\*
    // @grant        none
    // ==/UserScript==

    (function() {
    'use strict';

    function generateRandomId(length) {
        const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
        let result = '';
        for (let i = 0; i < length; i++) {
            result += characters.charAt(Math.floor(Math.random() * characters.length));
        }
        return result;
    }

    const eventProp = "customClick_" + generateRandomId(32);

    function customClickHandler(event) {
        if (event[eventProp]) {
            //console.log("customClick: recursion " + event);
            return;
        } else {
            //console.log("customClick: first " + event);
        }
        const ctrl = event.button === 1 || (event.ctrlKey && event.button === 0);
        const shift = event.shiftKey;

        let newCtrl = undefined;
        let newShift = undefined;

        //console.log("customClick: detected with " + ctrl + " " + shift);
        if (shift && !ctrl) {
            newCtrl = false;
            newShift = false;
        } else if (shift && ctrl) {
            newCtrl = false;
            newShift = true;
        } else if (!shift && !ctrl) {
            newCtrl = true;
            newShift = true;
        } else { // !shift && ctrl
            return;
        }
        //console.log("customClick: dispatching " + newCtrl + " " + newShift);
        const options = {};
        let source = event;
        while(source) {
            for (const prop of Object.getOwnPropertyNames(source)) {
                options[prop] = event[prop];
            }
            source = Object.getPrototypeOf(source);
        }
        options.button = 0;
        options.ctrlKey = newCtrl;
        options.shiftKey = newShift;

        let newEvent = new PointerEvent('click', options);
        newEvent[eventProp] = true;

        event.preventDefault();
        event.stopPropagation();
        event.target.dispatchEvent(newEvent);
    }
    document.addEventListener('click', customClickHandler, true);
    document.addEventListener('auxclick', customClickHandler, true);
    })();