Scripts aren't working

[Chirunos]

The scripts below aren't working:
https://github.com/ardiman/userChrome.js/tree/master/addrestartbutton
https://github.com/ardiman/userChrome.js/blob/master/restartfirefox
https://github.com/ardiman/userChrome.js/tree/master/restartfirefoxbutton
https://github.com/ardiman/userChrome.js/tree/master/restartfirefoxbutton_movable
https://github.com/ardiman/userChrome.js/tree/master/restartpanelbutton

I have tried using both of these methods:
https://github.com/Aris-t2/CustomJSforFx
https://github.com/Endor8/userChrome.js

By the way, the last script makes this with the 'File' tab in the menu:

I am using Firefox Release 105.0.1