Still trying to wrap my head around everything but;
The Gmail Webapp for firefox doesn't seem to be working as intended. I got the prompt to install the webapp -- which I did. The envelope icon appeared where it should have, but then the problem arises. The Gmail launcher icon nor the envelope notify me when I have new emails. The only time they do is when I'm already in Gmail in Firefox, which I assume isn't how the Webapp was intended to function, as that seems a little pointless.
I've tried googling the issue, and I've seen others with it, but that was months ago, and still I didn't find a solution to the problem.