This is mostly a query around the way web push notifications work; I use www.wrike.com for their project management software. I will get a push notification to let me know when someone edits or updates a task on their site. If I click this notification straight away, it behaves as expected and directs me to the updated task. If I miss the notification though, it will not be in my Mac's notification centre, it disappears completely. Now, I always have a Firefox window open with wrike.com loaded up already, is this why the notification disappears immediately - because Firefox has seen that I am on the website that sent the push notification, and it therefore dismisses said notification? If so, is there any way of editing this functionality? If I'm on a call or not in front of my computer for a second and miss the notification, then I have no way of getting back to it without going to the site and tracking down the change manually. Thanks!