Download the CRX file of a Chrome extension for inspection or manual installation.

dl_ext_webstore_console.js

window.location.href = (function() {
    var browser = (function() {
        var ua = navigator.userAgent,
            tem,
            M = ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
        if (/trident/i.test(M[1])) {
            tem = /\brv[ :]+(\d+)/g.exec(ua) || [];
            return {
                name: 'IE',
                version: (tem[1] || '')
            };
        }
        if (M[1] === 'Chrome') {
            tem = ua.match(/\bOPR|Edge\/(\d+)/);
            if (tem != null) {
                return {
                    name: 'Opera',
                    version: tem[1]
                };
            }
        }
        M = M[2] ? [M[1], M[2]] : [navigator.appName, navigator.appVersion, '-?'];
        if ((tem = ua.match(/version\/(\d+)/i)) != null) {
            M.splice(1, 1, tem[1]);
        }
        return {
            name: M[0],
            version: M[1]
        };
    })();

    var browser_version = browser.version + '.0';
    var href = location.href;
    if (href.includes('?')) {
        href = href.substring(0, href.indexOf('?'));
    }
    var ext_id = href.match(/([^\/]*)\/*$/)[1];
    return 'https://clients2.google.com/service/update2/crx?response=redirect&prodversion=' + browser_version + '&x=id%3D' + ext_id + '%26installsource%3Dondemand%26uc'+'&acceptformat=crx3';
})();