With push notifications, you can navigate away from SimpleTexting without worrying about missed messages. To enable them, click on your account name at the top-right corner, then click Enable notifications.
At the top of your browser toolbar, you'll receive this confirmation message. Click Allow.
Done! Now whenever a contact sends you a message you'll be notified right away.
By default, we'll snooze push notifications outside of regular office hours according to your time zone. If you're working outside of those hours, you can unsnooze them by hovering over your name and clicking the switch next to Notifications.