console.log("Hello from Universal Music addon!") /* On startup, connect to the "ping_pong" app. */ var port = browser.runtime.connectNative("universalmusic"); /* Listen for messages from the app. */ port.onMessage.addListener((response) => { console.log("Received: " + response); }); /* On a click on the browser action, send the app a message. */ browser.browserAction.onClicked.addListener(() => { console.log("Sending: ping"); port.postMessage("ping"); });