Firefox Notifications Default to Different Monitor / Coordinates

[megamorphg]

Is your feature request related to a problem? Please describe.
I use a CSS config to keep notifications on-screen for a day (or when I manually click close on them or they expire by themselves).
It's really nice because then my Google Calendar notifications just stay on screen hour by hour... and help remind me what I am supposed to be doing. However, they get in the way on my primary monitor since Firefox notifications can only load on the primary monitor and there are no configs or CSS to change that.

Describe the solution you'd like
A script to change the location where notifications spawn or even create about:config to define X and Y coordinates for such.

Describe alternatives you've considered
Changing primary monitor. (not feasible since it's only these semi-permanent notifications I want to change location of)
Changing from Firefox Notifications to Windows 10 Action notifications (not desireable)