This is a simple Chrome extension that will display a desktop notification if the Facebook tab has a new notification. It does not ask for or store your password.
I made this because I keep Facebook open on a secondary desktop in a Gnome DE on Linux.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License. Here is the source code:
https://github.com/dvictor/fb-notification-chrome-extension
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