Does Firebase Cloud Messaging support all major browsers or just chrome?

Question

I have looked into the documentation of FCM and it mentions that it cross platform. Anyhow FCM for Web documentation talks about Chrome. I want to check whether FCM supports

Answer 1

The link you mentioned is talking about FCM support for Chrome apps and extensions only, it's a different story for the web.

FCM supports Web Push Protocol, according to this article: https://developers.google.com/web/updates/2016/07/web-push-interop-wins

Now that FCM supports Web Push Protocol you can leave the endpoint intact and use the URL as a Web Push Protocol endpoint. (This brings it in line with Firefox and hopefully every other future browser.)

You no longer need a Firebase project, a gcm_sender_id, or an Authorization header.

Both Chrome and Firefox use the Push API for push notifications and Firefox already supports Web Push Protocol, which means by updating FCM server-side code, it will work for both Chrome and Firefox.

Google really needs to update their docs as Enable Push Notifications for your Web App is out of date.

It won't work with IE and Safari as they don't support the Push API at all.