Greasy Fork is available in English.
"滚动条移除"
// ==UserScript==
// @name 火狐新标签页优化
// @namespace https://live.bilibili.com/7115892
// @version 0.11
// @author bAdWindy
// @description:zh-cn "滚动条移除"
// @match https://newtab.firefoxchina.cn/newtab/as/activity-stream.html
// @grant none
// @description "滚动条移除"
// ==/UserScript==
document.getElementsByTagName('body')[0].style.overflowY="auto";