HI All,
I’d also quite like to know the prerequisites involved here. I use Firefox 39 + Ubuntu 14.04 as the client, with SuiteCRM 7.3. I’ve enabled the desktop notifications preference under my SuiteCRM user profile, and observe the confirmation prompt. Creating a meeting with the sole attendee being my user account doesn’t result in any desktop notification prior to the meeting, nor any missed meeting notification. Timezone and date settings are accurate. Any pointers on what I’m missing here would be great 
Cheers,
Dave