title: Does Firebase Cloud Messaging support all major browsers or just chrome?
body: <p>I have looked into the documentation of FCM and it mentions that it cross platform. Anyhow <a href="https://firebase.google.com/docs/cloud-messaging/chrome/client" rel="noreferrer">FCM for Web</a> documentation talks about Chrome. I want to check whether FCM supports messaging to all major web browsers including IE, Safari and Firefox?</p>