gistfile1.js

this.Then(/^The share tools links should link to the first item in the promo collection$/, function (callback) {
        var page,
            facebook,
            twitter;

        this.browser.pause(1500)
            .click('.gs-c-share-tools button')
            .pause(1500)
        .click('.gs-c-share-tools__button-icon--facebook')
            .getTabIds(function(err, tabIds) {
                page = tabIds[0];
                facebook = tabIds[1];
            })
            .switchTab(facebook)
            .getTitle(function(err, title) {
                console.log('title: ', title);
            })
            .getUrl()
                //.getUrl()
            .then(function(url) {
                console.log('id: ', url);
                callback();
            })
    });