Pixiv-rusher-boy.user.js

// ==UserScript==
// @name     Pixiv-rusher-boy
// @namespace PRB
// @version      0.0000000001
// @match    https://www.pixiv.net/bookmark_new_illust.php
// @description   made by fredgy-kun
// @grant       GM_notification
// @grant       window.focus
// @grant window.focus
// ==/UserScript==

console.log('starid: '+localStorage.getItem('banana'));
//localStorage.setItem('banana',localStorage.getItem('banana')- 1);



var warnaudio = new Audio('https://files.catbox.moe/amlyta.mp3');
warnaudio.addEventListener('ended', () => {location.reload();});
//warnaudio.play();

var getJSON = function(url, callback) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'json';
    xhr.onload = function() {
        var status = xhr.status;
        if (status === 200) {
            callback(null, xhr.response);
        } else {
            callback(status, xhr.response);
        }
    };
    xhr.send();
    return xhr.response;
}




function myFn() {
    getJSON('https://www.pixiv.net/touch/ajax/follow/latest?type=illusts&p=1&include_meta=1', function(err, data) {
        if (err !== null) {
            console.log('Something went wrong: ' + err);
        }
        else {
            console.log('Hello I wan ');
            console.log('Checkout the latest id ', data.body["illusts"][0]["id"]);
            if(localStorage.getItem('banana') < data.body["illusts"][0]["id"]){
                console.log('IT IS NEW');
                var idtoget = data.body["illusts"][0]["author_details"]["user_id"];
                console.log(idtoget);
                var danname = new XMLHttpRequest();
                danname.open('GET', "https://danbooru.donmai.us/artists.json?search[url_matches]=https://www.pixiv.net/member.php?id="+idtoget+"&search[is_active]=true&only=id,name,is_banned,other_names,urls", false);  // `false` makes the request synchronous
                danname.send(null);

                if (danname.status === 200) {
                    console.log(danname.responseText);
                }

                var notificationDetails = {
                    text: data.body["illusts"][0]["author_details"]["user_account"]+" - "+data.body["illusts"][0]["author_details"]["user_name"]+" - "+data.body["illusts"][0]["title"],
                    title: JSON.parse(danname.responseText)[0]?.name ,
                    timeout: 30000,
                    image: data.body["illusts"][0]["url_s"].replace("pximg.net","pixiv.cat"),
                    onclick: function() { window.focus(); },
                };
                console.log(notificationDetails);
                //GM.notification( text, title, image, onclick )
                GM_notification(notificationDetails);
                localStorage.setItem('banana', data.body["illusts"][0]["id"]);
                warnaudio.play(); // maybe it works now

            }
        }
    }
           );

}

setInterval(myFn, 30000)

Danbooru's image proxy was removed. Because of this, notifications don't display at all on Tampermonkey (and possibly others).
To fix this, replace line 62:

image: data.body["illusts"][0]["url_s"].replace('pximg.net', 'pixiv.cat'), // image_proxy is dead