browser.runtime.onMessage.addListener((message, sender, sendResponse) => { if (message.type === "COOKIE") { return browser.cookies.get({ url: message.url, name: message.key }); // const cookie = await browser.cookies.get({ // url: message.url, // name: message.key // }); // console.log(cookie) // sendResponse({"cookie":cookie}); } else { throw `Unkown message type ${message.type}` } });