twitter extras userscript

twitter-extras.user.js

// ==UserScript==
// @name        Twitter Extras
// @description Tweaks for Twitter Dot Com
// @include     /^https://twitter.com/
// @run-at      document-idle
// ==/UserScript==

if (document.querySelector('head meta[property="og:type"][content="profile"]')) {
  let url = new URL(document.querySelector('head meta[property="og:url"]').content);
  let username = url.pathname.replace(/^\//, "");

  document.querySelectorAll('input[placeholder="Search Twitter"]').forEach((input) => {
    input.value = `from:${username}`;
  });
}