Is anybody else experiencing issues with the urlbar on Nightly changing its height/margins?

like this: https://i.imgur.com/vu85Vtp.png

Previously I've used the "Decrease toolbar height" section from here, which stopped working correctly a few days ago so I messed around and ended up with:

    
toolbar#nav-bar {
  height: 26px !important;
}
.urlbar-input-container {
  height: 26px !important;
  margin-top: -4px !important;
  margin-bottom: 0px !important;
}
#urlbar-background {
  height: 20px !important;
  margin-top: -1px !important;
  margin-bottom: 0px !important;
}

  

But almost every day the urlbar moves up or down from where I set it and I have to change the values above accordingly.

edit: the changes seem to have stopped. I've updated the code with the currently-working values