dotfiles/firefox/userChrome.css

:root {
	--tab-active-bg-color: #ffffff;		/* background color of an active tab */
	--tab-inactive-bg-color: #cccccc;		/* background color of an inactive tab */
	--tab-active-fg-fallback-color: #565656;	/* color of text in an active tab without a container */
	--tab-inactive-fg-fallback-color: #565656;	/* color of text in an inactive tab without a container */

	/* try increasing if you encounter problems */
	--urlbar-height-setting: 24px;
	--tab-min-height: 16px !important;

	/* I don't recommend you touch this unless you know what you're doing */
	--arrowpanel-menuitem-padding: 2px !important;
	--arrowpanel-border-radius: 0px !important;
	--arrowpanel-menuitem-border-radius: 0px !important;
	--toolbarbutton-border-radius: 0px !important;
	--toolbarbutton-inner-padding: 0px 2px !important;
}

/* --- GENERAL DEBLOAT ---------------------------------- */

/* Bottom left page loading status or url preview */
/* #statuspanel { display: none !important; } */

/* Hide dropdown that appears when you type in search bar */
.autocomplete-history-popup, panel[type=autocomplete-richlistbox], panel[type=autocomplete] {
	display: none !important;
}

/* --- DEBLOAT NAVBAR ----------------------------------- */

#back-button { display: none; }
#forward-button { display: none; }
#reload-button { display: none; }
#stop-button { display: none; }
#home-button { display: none; }
#library-button { display: none; }
#fxa-toolbar-menu-button { display: none; }
/* empty space before and after the url bar */
#customizableui-special-spring1, #customizableui-special-spring2 { display: none; }

/* --- STYLE NAVBAR ------------------------------------ */

/* remove padding between toolbar buttons */
toolbar .toolbarbutton-1 { padding: 0 0 !important; }

/* add padding to the right of the last button so that it doesn't touch the edge of the window */
#PanelUI-menu-button {
	padding: 0px 4px 0px 0px !important;
}

#nav-bar, #navigator-toolbox {
	border-width: 0 !important;
	--toolbar-field-focus-border-color: #bbbbbb;
}

#urlbar-container {
	--urlbar-container-height: var(--urlbar-height-setting) !important;
	margin-left: 0 !important;
	margin-right: 0 !important;
	padding-top: 0 !important;
	padding-bottom: 0 !important;
	font-family: 'Jetbrains Mono', monospace;
	font-size: 11px;
}

#urlbar {
	--urlbar-height: var(--urlbar-height-setting) !important;
	--urlbar-toolbar-height: var(--urlbar-height-setting) !important;
	min-height: var(--urlbar-height-setting) !important;
	border-color: var(--lwt-toolbar-field-border-color, hsla(240,5%,5%,.25)) !important;
}

#urlbar-background {
	border-width: 0 !important;
	border-radius: 0 !important;
}

#urlbar-input-container {
	border-width: 0 !important;
	margin-left: 0.5em !important;
}

#urlbar-input {
	margin-left: 0.4em !important;
	margin-right: 0.4em !important;
}

/* weird hack to keep pop-up menus from overlapping with navbar */
#widget-overflow { margin: 0 !important; }
#appMenu-popup { margin: 0 !important; }
#customizationui-widget-panel { margin: 0 !important; }

/* --- DEBLOAT URLBAR ----------------------------------- */

#identity-box { display: none; }
#pageActionButton { display: none; }
#pocket-button { display: none; }
#urlbar-zoom-button { display: none; }
#tracking-protection-icon-container { display: none !important; }
#reader-mode-button{ display: none !important; }
#star-button { display: none; }

/* this will remove the invisible box at the end of urlbar but also will
 * disable the Ctrl+D shortcut */
/* #star-button-box { display: none; } */

/* Go to arrow button at the end of the urlbar when searching */
#urlbar-go-button { display: none; }

/* remove container indicator from urlbar */
#userContext-label, #userContext-indicator { display: none !important;}

/* --- STYLE TAB TOOLBAR -------------------------------- */

#titlebar {
	--proton-tab-block-margin: 0px !important;
	--tab-block-margin: 0 !important;
}

#TabsToolbar, .tabbrowser-tab {
	max-height: var(--tab-min-height) !important;
	font-size: 11px !important;
}

/* Change color of normal tabs */
tab:not([selected="true"]) {
	background-color: var(--tab-inactive-bg-color) !important;
	color: var(--identity-icon-color, var(--tab-inactive-fg-fallback-color)) !important;
}

tab {
	font-family: 'JetBrainsMono Nerd Font', monospace;
	font-weight: bold;
	border: none !important;
}

/* safari style tab width */
.tabbrowser-tab[fadein] { max-width: 100vw !important; border: none }

/* Hide close button on tabs */
#tabbrowser-tabs .tabbrowser-tab .tab-close-button { display: none !important; }

/* disable favicons in tab */
.tab-icon-stack:not([pinned]) { display: none !important; }

.tabbrowser-tab {
	/* remove border between tabs */
	padding-inline: 0px !important;
	/* reduce fade effect of tab text */
	--tab-label-mask-size: 1em !important;
	/* fix pinned tab behaviour on overflow */
	overflow-clip-margin: 0px !important;
}

/* Tab: selected colors */
#tabbrowser-tabs .tabbrowser-tab[selected] .tab-content {
	background: var(--tab-active-bg-color) !important;
	color: var(--tab-active-fg-fallback-color, var(--tab-active-fg-fallback-color)) !important;
}

/* Tab: hovered colors */
#tabbrowser-tabs .tabbrowser-tab:hover:not([selected]) .tab-content {
	background: var(--tab-active-bg-color) !important;
	color: var(--tab-active-fg-fallback-color, var(--tab-active-fg-fallback-color)) !important;
}

/* hide window controls */
.titlebar-buttonbox-container { display: none; }

/* remove titlebar spacers */
.titlebar-spacer { display: none !important; }

/* disable tab shadow */
#tabbrowser-tabs:not([noshadowfortests]) .tab-background:is([selected], [multiselected]) {
    box-shadow: none !important;
}

/* remove dark space between pinned tab and first non-pinned tab */
#tabbrowser-tabs[haspinnedtabs]:not([positionpinnedtabs]) >
#tabbrowser-arrowscrollbox >
.tabbrowser-tab[first-visible-unpinned-tab] {
	margin-inline-start: 0px !important;
}

/* remove dropdown menu button which displays all tabs on overflow */
#alltabs-button { display: none !important }

/* fix displaying of pinned tabs on overflow */
#tabbrowser-tabs:not([secondarytext-unsupported]) .tab-label-container { height: var(--tab-min-height) !important; }

/* remove overflow scroll buttons */
#scrollbutton-up, #scrollbutton-down { display: none !important; }