Profil Switcher?

// ==UserScript==
// @name            OpenWith
// @description        Fügt dem Kontextmenü ein Menü hinzu, zum Öffnen der aktuelle Seite und eines ausgewählten Links in einem anderen Browser.
// @description        und eines ausgewählten Links in einem anderen Browser.
// @version            1.2.1a  63+
// @author            y2k
// @include            main
// @charset            UTF-8
// @namespace        http://tabunfirefox.web.fc2.com/
// @note            Anwendungssymbol anzeigen
// @note            als .uc.js Script umgeschrieben
// ==/UserScript==
(function() {
"use strict";
/*
    Vor Verwendung, Pfad auf eigene Umgebung ändern(\ wird durch \\ ersetzt)
    Zum Übergeben von Argumenten, wie folgt vorgehen:
    C:\\Program Files\\Internet Explorer\\iexplore.exe<>$1 Argument Argument
    ※ $1 wird in URL umgewandelt
*/
const BrowserPath = {
    "Nightly":"D:\\Nightly\\NightlyMultiLoader.exe",
    "Nightly Neu  ":"D:\\Nightly Neu\\Firefox Launcher.exe",
    "Beta":                "D:\\Beta\\BetaLoader.exe",
    "Neu":              "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe",
    "Test Firefox":     "D:\\Test-Firefox\\Firefox Launcher.exe",
    "ESR 115":          "D:\\ESR 115\\ESRLoader.exe",
    "ESR 102":          "F:\\ESR 102\\ESRLoader.exe",
    "ESR 91":           "F:\\ESR 91\\FirefoxLoader.exe",    
    "ESR 78":           "F:\\ESR 78\\FirefoxLoader.exe",
    "ESR 68":           "F:\\ESR 68\\FirefoxLoader.exe",
    "ESR 52":           "F:\\ESR 52\\FirefoxLoader.exe",
    "Chrome":           "D:\\PortableGoogleChrome\\Chrome Launcher.exe",
    "Edge":             "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
};

const FlatMenu = false;

const OpenWith = {
    start: function() {
        const cm = document.getElementById("contentAreaContextMenu");
        cm.addEventListener("popupshowing", function(e) {
            if (e.target == this) { OpenWith.onpopup(e); }
        }, false);
    },

    createMenu: function() {
        if (this.pageItem || this.linkItem) {
            return;
        }

        const contextMenu = document.getElementById("contentAreaContextMenu");
        const pageMenu = this.$C("menu", { id: "context-open-with-page", label: "Seite öffnen mit:" });
        contextMenu.insertBefore(pageMenu, contextMenu.querySelector(":scope > #context-bookmarkpage, :scope > #context-savepage"));

        const linkMenu = this.$C("menu", { id: "context-open-with-link", label: "Link öffnen mit:" });
        contextMenu.insertBefore(linkMenu, contextMenu.querySelector(":scope > #context-sep-open"));

        this.pageItem = this.createMenuItem(pageMenu, "openPage", FlatMenu? "Seite öffnen mit $1 ":"  $1");
        this.linkItem = this.createMenuItem(linkMenu, "openLink", FlatMenu? "Link öffnen mit $1 ":"  $1");
    },
    
    createMenuItem: function(menu, method, format) {
        const frag = document.createDocumentFragment();
        
        let menuitem = [];
        for (let i of Object.keys(BrowserPath)) {
            const item = this.$C("menuitem", {
                label:    format.replace("$1", i),
                class:    "menuitem-iconic",
                image:    "moz-icon:file:///" + BrowserPath[i].split("<>")[0] + "?size=16",
                value:    JSON.stringify([ method, i ]),
            });
            item.addEventListener("command", this, false);

            frag.appendChild(item);
            menuitem[menuitem.length] = item;
        }
        
        if (!FlatMenu) {
            const menupopup = this.$C("menupopup");
            menupopup.appendChild(frag);
            menu.appendChild(menupopup);
            menuitem = [ menu ];
        }
        else {
            const parent = menu.parentNode;
            parent.insertBefore(frag, menu);
            parent.removeChild(menu);
        }
        
        return menuitem;
    },

    $C: function(tag, attrs) {
        const elem = document.createXULElement(tag);
        if (attrs) {
            for (let key of Object.keys(attrs))
                elem.setAttribute(key, attrs[key]);
        }
        return elem;
    },

    onpopup: function(e) {
        this.createMenu();
        
        const isHtml = /^(https?|file):/.test(gBrowser.currentURI.spec);
        const pageItemHidden = !isHtml || gContextMenu.onLink || gContextMenu.onTextInput;
        const linkItemHidden = !isHtml || !gContextMenu.onLink || gContextMenu.onTextInput;
        
        const pageItem = this.pageItem;
        for (let i = 0, l = pageItem.length; i < l; i++) {
            pageItem[i].hidden = pageItemHidden;
        }
        const linkItem = this.linkItem;
        for (let i = 0, l = linkItem.length; i < l; i++) {
            linkItem[i].hidden = linkItemHidden;
        }
    },

    handleEvent: function(event) {
        if (event.type === "command") {
            const [ method, key ] = JSON.parse(event.originalTarget.getAttribute("value"));
            const url = method === "openPage"? gBrowser.currentURI.spec: gContextMenu.linkURL;
            this.launch(BrowserPath[key], url);
        }
    },
    
    launch: function(browserPath, openURL) {
        let [ path, args ] = browserPath.split("<>");
        if (args) {
            args = args.split("^^").map(a => a.replace("$1", openURL));
        } else {
            args = [ openURL ];
        }
        
        const file = Cc['@mozilla.org/file/local;1'].createInstance(Ci.nsIFile);
        file.initWithPath(path);
        
        const process = Cc['@mozilla.org/process/util;1'].createInstance(Ci.nsIProcess);
        process.init(file);
        process.run(false, args, args.length, {});
    },
};

OpenWith.start();

})();