For FF release 123.0.1 with Windows 11 this seems to work: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom.csscombined with: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom_menubar_on_...
For FF release 123.0.1 with Windows 11 this seems to work: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom.csscombined with: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom_menubar_on_...
For FF release 123.0.1 with Windows 11 this seems to work: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom.csscombined with: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom_menubar_on_...