For many years, I have used Pushbullet for Android notification mirroring to Chrome, but am now looking for an alternative. I tried "Desktop Notifications" by HCILab and never successfully received a notification in Chrome. Now, I am trying Join and am having the same problem; no notifications. The Join diagnostics on Android are successful, but in Chrome they are not. "Receiving Push from server" and "Receiving Push with GCM key" both fail. Upon running GCM-Internals per the FAQ, I see "Connection State LOGGING IN," which seems like a problem. Given that Pushbullet is the only one that has successfully mirrored so far, I wonder if it's possible that Join and Desktop Notifications use a different methodology that perhaps my office's netnanny blocks?