I'm not entirely sure what this means. However, I have a few more bits of information.
- All notifications work on desktop Firefox on Gnome Shell on UbuntuGnome.
- I am testing against Firefox nightly and Firefox 47, both for android on Cyanogenmod 12.1 on a Nexus 5
- I am also testing against Chromium 51.0.2684.0
No "Enable Push Notifications" button appears in Firefox 47. In Firefox Nightly and Chromium, it appears. When I click on "Enable Push Notifications" in Firefox Nightly, the following appears:
When I select "Always", I then get kicked back to the settings page, and see the following. Note that no matter how many times I push "Enable push notifications", I never see it "convert":
The Console add-on in firefox shows no output either.
If I enable only "Enable desktop notifications", and then send myself a message, I don't get any notifications, and sending a message when the Firefox window is in the background shows nothing. Sample:
In Chromium, selecting "Enable push notifications" does nothing. I only get a warning about notifications when I select "Turn On Notifications":
One of my colleagues who has Chrome installed on Cyanogenmod 13 with GApps installed is able to enable push notifications, but still never receives any notifications.
I'm really not sure how to further debug this to figure out if it's my browser (why would it be??), Android (again, why would it be??) or something else.