Keyboard shortcut stops working (Windows 10)

[loopernow]

The keyboard shortcut I assign to this extension stops working after a while. I'm not sure what causes it to stop working. Maybe when Windows sleeps? I'm not sure. I do not have this issue with any other Firefox extensions' keyboard shortcuts.

The shortcuts I've tried have all been iterations of Alt+: Alt+C, Alt-Q, Alt-Z. It doesn't matter what iteration it is or which Windows computer I am on; it always stops working. If I then go and assign a different shortcut, the new shortcut works immediately--until it doesn't.

Steps to reproduce:

• Assign keyboard shortcut to extension
• Use extension for a while

System: Windows 10