document.addEventListener("DOMContentLoaded", function () { const downloadVideoButton = document.getElementById('download-video'); downloadVideoButton.addEventListener('click', function () { chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) { chrome.tabs.sendMessage(tabs[0].id, { action: 'downloadVideo' }); }); }); }); Create a background.js and add it to your manifest.json :
