fenix-fox/chrome/navbar_tabs_oneliner_menu_buttons_on_right.css

/* Modify these to change relative widths or default height */
#navigator-toolbox{ --uc-navigationbar-width: 50vw; --uc-toolbar-height: 40px; --window-drag-space-width: 20px}
/* reserved space for overflow + menu buttons */
#navigator-toolbox{ --uc-buttons-width: calc(56px + 4 * var(--toolbarbutton-outer-padding) + var(--uc-menubutton-padding,6px))}
#nav-bar:not([overflowing]) > #nav-bar-customization-target{ --uc-buttons-width: calc(28px + 2 * var(--toolbarbutton-outer-padding) + 6px) }
/* Override for other densities */
:root[uidensity="compact"] > #navigator-toolbox{ --uc-toolbar-height: 32px; --uc-menubutton-padding: 0px}
:root[uidensity="touch"] > #navigator-toolbox{ --uc-toolbar-height: 40px; }

/* prevent urlbar overflow on narrow windows */
/* Dependent on how many items are in navigation toolbar ADJUST AS NEEDED */
@media screen and (max-width: 1000px){
  #urlbar-container{ min-width:unset !important }
}

#TabsToolbar{ margin-left: var(--uc-navigationbar-width); }
#tabbrowser-tabs{ --tab-min-height: var(--uc-toolbar-height) !important; }
/* This isn't useful when tabs start in the middle of the window */
.titlebar-placeholder[type="pre-tabs"],.titlebar-spacer[type="pre-tabs"]{ width:8px !important}
#nav-bar{
  margin-right:calc(3 * 46px + var(--window-drag-space-width));
  margin-top: calc(0px - var(--uc-toolbar-height));
  padding-left: var(--window-drag-space-width);
}
#nav-bar-customization-target{ margin-right: calc(100vw - (var(--uc-navigationbar-width)) - var(--uc-buttons-width) - (3 * 46px) - var(--window-drag-space-width)) }
#TabsToolbar > :not(hbox){ position: relative !important; z-index: 2 }
.titlebar-placeholder[type="post-tabs"],
.titlebar-spacer[type="post-tabs"]{
  width: calc(var(--uc-buttons-width) + var(--window-drag-space-width)) !important;
}
#PanelUI-button,#nav-bar-overflow-button{
  margin: 0px !important;
  border: 0px !important;
  position: relative;
  z-index: 3;
}
/* 1px margin on touch density causes tabs to be too high */
.tab-close-button{ margin-top: 0 }

/* Hide dropdown placeholder */
#urlbar-container:not(:hover) .urlbar-history-dropmarker{margin-inline-start: -28px;}