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在chrome插件市场右上角添加一个下载crx文件的按钮
// ==UserScript==
// @name 从Chrome插件市场下载crx文件
// @name:en download crx from chrome extention store
// @namespace https://chrome.google.com/
// @version 2025-08-08
// @description 在chrome插件市场右上角添加一个下载crx文件的按钮
// @description:en Add a button to download crx files in the upper right corner of the chrome plugin market.
// @match https://chrome.google.com/webstore/detail/*
// @match https://chromewebstore.google.com/detail/*
// @license MIT
// @author QL
// @icon https://fonts.gstatic.com/s/i/productlogos/chrome_store/v7/192px.svg
// @grant none
// @run-at document-end
// ==/UserScript==
(function() {
'use strict';
let version = "139.0.7258.67";
let appid = location.pathname.split('detail/')[1].split('/')[1];
let appname = location.pathname.split('detail/')[1].split('/')[0];
let downloadurl = `https://clients2.google.com/service/update2/crx?response=redirect&os=win&arch=x64&os_arch=x86_64&nacl_arch=x86-64&prod=chromecrx&prodchannel=&prodversion=${version}&lang=zh-CN&acceptformat=crx3,puff&x=id%3D${appid}%26installsource%3Dondemand%26uc`;
let downloadInnerText = '下载CRX文件';
let html = `
<style>
.crx-download-btn {
position: fixed;
top: 100px;
right: 100px;
z-index: 9999;
display: inline-block;
background: linear-gradient(90deg, #4f8cff 0%, #174ea6 100%);
border-radius: 28px;
box-shadow: 0 4px 16px rgba(23, 78, 166, 0.15);
padding: 0;
border: none;
cursor: pointer;
transition: box-shadow 0.2s, transform 0.2s;
}
.crx-download-btn:hover {
box-shadow: 0 8px 24px rgba(23, 78, 166, 0.25);
transform: translateY(-2px) scale(1.04);
}
.crx-download-btn a {
display: block;
padding: 12px 32px;
color: #fff;
font-size: 16px;
font-weight: 600;
text-decoration: none;
letter-spacing: 1px;
border-radius: 28px;
transition: background 0.2s;
}
</style>
<div class="crx-download-btn" role="button">
<a href="${downloadurl}" download="${appname}">${downloadInnerText}</a>
</div>
`;
setTimeout(() => document.body.insertAdjacentHTML('beforeend', html), 5000);
})();