~This should not be an issue anymore. I believe I fixed this in version 1.6...~

UPDATE:
Hello and thank you for review,

I believe you're talking about CTRL + SHIFT + 0 (pause the extension) shortcut.
You are allowed to pause the extension via a shortcut, but you are not allowed to unpause it. To unpause the extension, you do have to leave fullscreen and click the extension icon and then manually toggle pause - off.

This is expected behavior and the reason behind it is that pause will kill all listeners of the extension (including the keyboard shortcuts).

I hope that you understand and if you have any suggestions, let me know.

Regards,
Nenad Novakovic.