ついったーの画像を貰っていくやつです

twitter_no_gazou_dl_suruyatu.user.js

// ==UserScript==
// @name         get images from permalink tweet
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       karubabu
// @match        https://twitter.com/*/status/*
// @grant        GM_download
// @grant        GM_notification
// @grant        GM_registerMenuCommand
// ==/UserScript==

GM_registerMenuCommand("DL images", run);
function run(){
    (function() {
        'use strict';

        // Your code here...
        var a = document.querySelector(".tweet.permalink-tweet ");
        var b = a.querySelectorAll(".AdaptiveMedia-photoContainer.js-adaptive-photo > img");
        for (let item of b)
        {
            var strsplit = item.src.split("/");
            var fname = strsplit[strsplit.length -1];
            GM_download({url: item.src, name: fname, onload: GM_notification(fname + " complete!")});
        }
    })();
}