The notifications are never delivered to the app when the app is launched for the first time from TestFlight. If I kill the app after first launch from TestFlight and restart the app, the push notifications come through.
Firebase Push notification is not working on test for the first when app starts
You should show how you subscribe to notifications, where exactly ?
You mean you just quit or you uninstall the app ?If I kill the app
i have configured firebase in App delegate didFinishLaunchingWithOptions. My notification works perfectly when I'm running from my xcode but once i upload on test flight it does not work for the first time but after killing app it started to work.