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Tab bar (all tabs) missing in Firefox 90

  • 8 பதிலளிப்புகள்
  • 1 இந்த பிரச்சனை உள்ளது
  • 45 views
  • Last reply by RemySecor

I just got my upgrade from Firefox86 to Firefox90 working, but the tab bar is completely missing.

I still use "old-style" FIrefox. From top to bottom: File/Edit/View menu Search bar Bookmarks Toolbar Tab bar

(yes, I AM old. I've been using Firefox since Version 1 and this particular style works for me, developers be damned.)

The tab bar is completely missing. Firefox knows how many tabs I have open (it warns me when I try to exit) but doesn't show any. The area that the Tab Bar used to occupy is simply empty.

Any ideas on how to fix? (Yes, I have done the Google.)

தீர்வு தேர்ந்தெடுக்கப்பட்டது

You can try this change. If it doesn't work and I haven't tested the code as it mainly is code for Windows and I'm not on that platform then best is to go to Firefox CSS subreddit.

Old code:

#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
}

New code:

#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
  position: relative !important;
}

Read this answer in context 👍 1

All Replies (8)

See this forum response for updated CSS code for Firefox 89+:

DISCLAIMER: modifications made through a userChrome.css file can stop working as Firefox evolves in new releases, and can "break" the interface in serious ways.

Helpful?

cor-el: That link has adjustments for Firefox 69 and above. I am already using Firefox 86 with userChrome.css and in that version of the browser the tab bar shows below the bookmarks toolbar, so that doesn't seem to apply to my situation.

Helpful?

If I go into settings for Toolbars, I can see the tabs at the bottome of the browser screen, overlapping the Settings options.

Helpful?

This is what my current userChrome.css file looks like. Is there some simple change I can make to it? PART 1

/* Firefox Quantum userChrome.css tweaks ************************************************/
/* Github: https://github.com/aris-t2/customcssforfx ************************************/
/* THIS EXTRACT combines two files from the above repository:
   https://github.com/Aris-t2/CustomCSSforFx/blob/master/classic/css/tabs/tabs_below_navigation_toolbar.css
   version 2.3.9 as of Feb. 2, 2019
   https://github.com/Aris-t2/CustomCSSforFx/blob/master/classic/css/tabs/tabs_below_navigation_toolbar_fx65.css
   version 2.4.4 as of Feb. 22, 2019
*/
/****************************************************************************************/

:root {
  --colored_menubar_background_image: linear-gradient(#f9f9fa,#f9f9fa);
  --general_toolbar_color_toolbars: linear-gradient(#f9f9fa,#f9f9fa);
  --general_toolbar_color_navbar: linear-gradient(#f9f9fa,#f9f9fa);
  --tabs_toolbar_color_tabs_not_on_top: linear-gradient(#f9f9fa,#f9f9fa);
  --tabs_toolbar_border-tnot_normal_mode_size: 1px;
  --tabs_toolbar_border-tnot_normal_mode: var(--tabs-border-color);
  --classic_squared_tabs_tab_text_color: black;
  --classic_squared_tabs_new_tab_icon_color: black;
  --classic_squared_tabs_tab_text_shadow: transparent;
  --tab-min-height_tnot: 32px;
}

:root[uidensity=compact]  {
  --tab-min-height_tnot: 28px;
}

:root[uidensity=touch] {
  --tab-min-height_tnot: 40px;
}

/* tabs toolbar adjustment */
#main-window[tabsintitlebar] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#TabsToolbar {
  -moz-padding-start: 2px !important;
}

#main-window[tabsintitlebar] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar:-moz-lwtheme,
#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar:-moz-lwtheme,
#main-window[uidensity=compact][tabsintitlebar] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar:-moz-lwtheme,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar:-moz-lwtheme,
#TabsToolbar:-moz-lwtheme,
#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[sizemode="maximized"] #TabsToolbar,
#main-window[tabsintitlebar]:not([style*='--lwt-header-image']):-moz-lwtheme #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"]:not([style*='--lwt-header-image']):-moz-lwtheme #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar]:not([style*='--lwt-header-image']):-moz-lwtheme #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"]:not([style*='--lwt-header-image']):-moz-lwtheme #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[tabsintitlebar]:not([style*='--lwt-header-image']):-moz-lwtheme #TabsToolbar {
  -moz-padding-start: 0px !important;
}

#main-window[tabsintitlebar][sizemode="normal"]:not([sizemode="fullscreen"]) #TabsToolbar {
  margin-top: 0px !important;
}

#main-window[tabsintitlebar][sizemode="normal"][chromehidden~="menubar"] #TabsToolbar,
#main-window[tabsintitlebar][sizemode="normal"] #toolbar-menubar[autohide="true"][inactive] + #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"][chromehidden~="menubar"] #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive] + #TabsToolbar {
  padding-top: 0px !important;
}

#main-window[tabsintitlebar] #toolbar-menubar[autohide="true"]:not([inactive="true"]) ~ #TabsToolbar,
#main-window[tabsintitlebar] #toolbar-menubar[autohide="false"] ~ #TabsToolbar{
  margin-top: 0px !important;
}

/* tab title in titlebar support */
#main-window[tabsintitlebar][sizemode="normal"] #navigator-toolbox #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="normal"] #navigator-toolbox #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"] #navigator-toolbox #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"] #navigator-toolbox #TabsToolbar,
#main-window[tabsintitlebar][sizemode="normal"] #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="normal"] #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[tabsintitlebar][sizemode="maximized"] #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[uidensity=compact][tabsintitlebar][sizemode="maximized"] #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar{
  margin-top: 0px !important;
}

/* titlebar button support */
#main-window[tabsintitlebar] #toolbar-menubar[autohide="true"][inactive="true"] ~ #nav-bar{
  margin-top: 2px !important;
}

/* fix for application/hamburger button in titlebar */
#main-window[tabsintitlebar][sizemode="fullscreen"] #toolbar-menubar[autohide="true"][inactive="true"] ~ #nav-bar #PanelUI-button {
  visibility: collapse !important;
}

#main-window[inDOMFullscreen="true"] #TabsToolbar {
  opacity: 0 !important;
}

/* tab height */
#tabbrowser-tabs,
#tabbrowser-tabs > .tabbrowser-arrowscrollbox,
.tabbrowser-tabs[positionpinnedtabs] > .tabbrowser-tab[pinned] {
  min-height: var(--tab-min-height_tnot) !important;
}

/* toolbar order (start) ************************************/
#print-preview-toolbar,
#printedit-toolbar,
#titlebar {
  -moz-box-ordinal-group: 0 !important;
}
#navigator-toolbox #toolbar-menubar {
  -moz-box-ordinal-group: 1 !important;
}
/* navigation toolbar */
#navigator-toolbox #nav-bar {
  -moz-box-ordinal-group: 2 !important;
}
/* bookmarks toolbar */
#navigator-toolbox #PersonalToolbar {
  -moz-box-ordinal-group: 3 !important;
}
/* 3rd party toolbars */
#navigator-toolbox toolbar {
  -moz-box-ordinal-group: 10 !important;
}
/* tabs toolbar */
#navigator-toolbox #TabsToolbar {
  -moz-box-ordinal-group: 100 !important;
}
/* toolbar order (end) **************************************/

/* toolbar colors */
#main-window:not([tabsintitlebar]) #toolbar-menubar:not(:-moz-lwtheme) {
  background-image: var(--colored_menubar_background_image) !important;
  border: 0px !important;
  margin-bottom: -1px !important;
}

#nav-bar:not(:-moz-lwtheme) {
  -moz-appearance: none !important;
  background: var(--general_toolbar_color_navbar, inherit) !important;
}

toolbar:not(#TabsToolbar):not(#toolbar-menubar):not(#nav-bar):not(:-moz-lwtheme) {
  -moz-appearance: none !important;
  background: var(--general_toolbar_color_toolbars, inherit) !important;
}
#TabsToolbar:not(:-moz-lwtheme){
  -moz-appearance: none !important;
  background-image: var(--tabs_toolbar_color_tabs_not_on_top) !important;
}

/* remove color overlay for lw-themes */
#main-window[style*='--lwt-header-image'] :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar):-moz-lwtheme{
  background: unset !important;
}

/* adjust compact themes background color */
#main-window:not([style*='--lwt-header-image']) #TabsToolbar:-moz-lwtheme {
  -moz-appearance: none !important;
  background-image: linear-gradient(var(--toolbar-bgcolor),var(--toolbar-bgcolor)) !important;
}

#main-window:not(:-moz-lwtheme) #TabsToolbar :-moz-any(.tabs-newtab-button,.scrollbutton-up,.scrollbutton-down),
#main-window:not(:-moz-lwtheme) #TabsToolbar > toolbarbutton,
#main-window:not([style*='--lwt-header-image']):-moz-lwtheme:-moz-lwtheme-darktext #TabsToolbar :-moz-any(.tabs-newtab-button,.scrollbutton-up,.scrollbutton-down),
#main-window:not([style*='--lwt-header-image']):-moz-lwtheme:-moz-lwtheme-darktext #TabsToolbar > toolbarbutton {
  fill: var(--classic_squared_tabs_new_tab_icon_color) !important;
  color: var(--classic_squared_tabs_new_tab_icon_color) !important;
}

/* toolbar borders */
#main-window #navigator-toolbox::after {
  opacity: 0 !important;
}

#TabsToolbar{
  margin-bottom: 0px !important;
  border-bottom: 1px solid #5f7181 !important;
}

#main-window[sizemode="normal"] #navigator-toolbox :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar) {
  border-left: var(--tabs_toolbar_border-tnot_normal_mode_size) solid var(--tabs_toolbar_border-tnot_normal_mode) !important;
  border-right: var(--tabs_toolbar_border-tnot_normal_mode_size) solid var(--tabs_toolbar_border-tnot_normal_mode) !important;
  background-clip: padding-box !important;
}

#main-window[sizemode="maximized"] #navigator-toolbox :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar) {
  border-left: 0px !important;
  border-right: 0px !important;
}

#main-window[style*='--lwt-header-image'][sizemode="normal"] #navigator-toolbox :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar):-moz-lwtheme,
#main-window[style*='--lwt-header-image'][sizemode="maximized"] #navigator-toolbox :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar):-moz-lwtheme {
  border-top: 0px !important;
  border-left: 0px !important;
  border-right: 0px !important;
}

cor-el மூலமாக திருத்தப்பட்டது

Helpful?

Part 2:

#main-window:not([style*='--lwt-header-image']):-moz-lwtheme-brighttext #TabsToolbar:-moz-lwtheme {
  border-bottom: 1px solid #323234 !important;
}

#main-window:not([style*='--lwt-header-image']):-moz-lwtheme:-moz-lwtheme-brighttext #TabsToolbar:-moz-lwtheme {
  border-bottom: 1px solid #323234 !important;
}

#main-window:not([sizemode="fullscreen"])[tabsintitlebar] #TabsToolbar{
  -moz-margin-end: 0px !important;
}

#main-window[tabsintitlebar] #TabsToolbar .titlebar-placeholder{
  visibility: collapse !important;
}

#main-window[tabsintitlebar][sizemode="normal"] #toolbar-menubar[autohide="true"][inactive="true"] {
  margin-top: 21px !important;
}
#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] {
  margin-top: 20px !important;
}

#tabbrowser-tabs .tab-drop-indicator {
  margin-bottom: 0px !important;
}

#PersonalToolbar:-moz-lwtheme,
#nav-bar:-moz-lwtheme {
  background-image: none !important;
  box-shadow: none !important;
  border-top: none !important;
  border-bottom: none !important;
}

/* remove tab fog */
#TabsToolbar:not(:-moz-lwtheme),
#TabsToolbar:not(:-moz-lwtheme)::before,
#TabsToolbar:not(:-moz-lwtheme)::after {
  box-shadow: unset !important;
}

/* remove 'dragging tab' margin/padding nonsense */
#TabsToolbar[movingtab] {
  padding-bottom: unset !important;
}

#TabsToolbar[movingtab] > .tabbrowser-tabs {
  padding-bottom: unset !important;
  margin-bottom: unset !important;
}

#TabsToolbar[movingtab] + #nav-bar {
  margin-top: unset !important;
}

/* scroll buttons */
#TabsToolbar:not(:-moz-lwtheme) #alltabs-button,
#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-arrowscrollbox > .scrollbutton-up,
#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-arrowscrollbox > .scrollbutton-down {
  fill: black !important;
}

/* Fx58+ titlebar placeholders */
#TabsToolbar *[type="pre-tabs"],
#TabsToolbar *[type="post-tabs"] {
  display: none !important;
}

@media (-moz-os-version: windows-win10) {
	#main-window[tabsintitlebar][sizemode="normal"] #toolbar-menubar[autohide="true"][inactive="true"] {
	  margin-top: 30px !important;
	}
	#main-window[tabsintitlebar][sizemode="maximized"] #toolbar-menubar[autohide="true"][inactive="true"] {
	  margin-top: 30px !important;
	}
}

@media (-moz-windows-classic) {

	/* tweaks for Windows Classic theme */
	#nav-bar:not(:-moz-lwtheme),
	#PersonalToolbar:not(:-moz-lwtheme),
	#main-window:not([tabsintitlebar])  #TabsToolbar:not(:-moz-lwtheme) {
	  border-left: unset !important;
	  border-right: unset !important;
	  background: unset !important;
	}

	#main-window[sizemode="normal"] #navigator-toolbox :-moz-any(#nav-bar,#PersonalToolbar,#TabsToolbar) {
	  border-left: 0px !important;
	  border-right: 0px !important;
	}

	#main-window:not([tabsintitlebar]) #toolbar-menubar:not(:-moz-lwtheme) {
	  background: unset !important;
	  box-shadow: unset !important;
	  border-bottom: unset !important;
	}

	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #navigator-toolbox,
	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #nav-bar,
	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #navigator-toolbox::before,
	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #nav-bar::before,
	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #navigator-toolbox::after,
	#main-window:not([tabsintitlebar]):not(:-moz-lwtheme) #nav-bar::after {
	  background: unset !important;
	  box-shadow: unset !important;
	  border: unset !important;
	  border-image: unset !important;
	}

	#main-window:not([tabsintitlebar]) toolbar:not(#TabsToolbar):not(#toolbar-menubar):not(#nav-bar):not(:-moz-lwtheme) {
	  background: unset !important;
	}

}

/* tab text colors */
#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab {
  color: var(--classic_squared_tabs_tab_text_color) !important;
  text-shadow: 1px 1px 1px var(--classic_squared_tabs_tab_text_shadow) !important;
}

/* fix Windows 7s default tab background (remove dark purple bg color)*/
@media (-moz-os-version: windows-win7) {
  @media (-moz-windows-default-theme) {
    .tabbrowser-tab:not([selected]):not(:hover):not(:-moz-lwtheme) {
      background-color: #e3e4e6 !important;
    }
	.tabbrowser-tab:not([selected]):hover:not(:-moz-lwtheme) {
      background-color: #cccdcf !important;
    }

  }
}

/* Simple Close Tab button */
#TabsToolbar:not(:-moz-lwtheme) #_fe8cab45-aaee-45f8-8765-781e0ebea300_-browser-action {
  --webextension-toolbar-image-light: url("moz-extension://7904448c-2319-4f6f-aac9-a1f701258098/icons/Close-dark.svg") !important;
}

/* close tab button */
#TabsToolbar:not(:-moz-lwtheme) #closetab_fmarin_com-browser-action {
  --webextension-toolbar-image-light: url("moz-extension://31006e48-8e00-476f-8ea9-697e40934b02/icons/icon.svg") !important;
  --webextension-toolbar-image-2x-light: url("moz-extension://31006e48-8e00-476f-8ea9-697e40934b02/icons/icon.svg") !important;
}

/* close window button */
#TabsToolbar:not(:-moz-lwtheme) #close-window-button_nanpuyue_com-browser-action {
  --webextension-toolbar-image-light: url("moz-extension://c914bd13-793f-4a2d-ab66-c655a3d75c52/icons/icon.svg") !important;
  --webextension-toolbar-image-2x-light: url("moz-extension://c914bd13-793f-4a2d-ab66-c655a3d75c52/icons/icon.svg") !important;
}

/*
   Start Firefox 65 fix:
   https://github.com/Aris-t2/CustomCSSforFx/blob/master/classic/css/tabs/tabs_below_navigation_toolbar_fx65.css
   Lines 1-10 omitted
*/

#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
}

#TabsToolbar {
  position: absolute !important;
  bottom: 0 !important;
  width: 100vw !important;
}

#tabbrowser-tabs {
  width: 100vw !important;
}

/* make sure button icon colors set correctly */
#main-window:not(:-moz-lwtheme) #TabsToolbar-customization-target toolbarbutton .toolbarbutton-icon,
#main-window:not([style*='--lwt-header-image']):-moz-lwtheme:-moz-lwtheme-darktext #TabsToolbar-customization-target toolbarbutton .toolbarbutton-icon {
  fill: var(--classic_squared_tabs_new_tab_icon_color) !important;
  color: var(--classic_squared_tabs_new_tab_icon_color) !important;
}

#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar .titlebar-buttonbox-container {
  display: none !important;
}

/* move caption buttons to windows top right position */
#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
  position: fixed !important;
  right: 0 !important;
  visibility: visible !important;
  display: block !important;
}

/* caption button position in maximized mode after moving to the top */
#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container,
#main-window[tabsintitlebar][sizemode="maximized"]:not([inDOMFullscreen="true"]) #TabsToolbar .titlebar-buttonbox-container {
  top: -14px !important;
}

cor-el மூலமாக திருத்தப்பட்டது

Helpful?

Part 3:

/* Windows */
@media (-moz-os-version:windows-win10), (-moz-os-version:windows-win8), (-moz-os-version:windows-win7) {
	#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container	{
	  top: 1px !important;
	}
	#main-window[tabsintitlebar][sizemode="maximized"]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  top: 8px !important;
	}
}

/* Windows 7/8 extra tweaks */
@media (-moz-os-version: windows-win7) {
  @media all and (-moz-windows-compositor) {
	#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  display: none !important;
	}
	#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]):-moz-lwtheme #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  display: block !important;
	  margin-top: -13px !important;
	}
  }
  @media not all and (-moz-windows-compositor) {
	#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  top: -2px !important;
	}
	#main-window[tabsintitlebar][sizemode="maximized"]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  top: 0px !important;
	}
  }
}

@media (-moz-os-version:windows-win8) {
	#main-window[tabsintitlebar]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container	{
	  top: -13px !important;
	}
	#main-window[tabsintitlebar][sizemode="maximized"]:not([inDOMFullscreen="true"]) #toolbar-menubar ~ #TabsToolbar .titlebar-buttonbox-container {
	  top: -5px !important;
	}
}


/* Windows 10 extra tweaks */
@media (-moz-os-version: windows-win10) {
  #main-window:not([tabsintitlebar]) menubar > menu:not(:-moz-lwtheme):hover:not([disabled="true"]),
  #main-window:not([tabsintitlebar]) menubar > menu:not(:-moz-lwtheme)[_moz-menuactive="true"]:not([disabled="true"]) {
	background-color: Highlight !important;
	color: HighlightText !important;
  }
}

/* tweaks for fullscreen mode */
#main-window[tabsintitlebar][sizemode="fullscreen"] #toolbar-menubar[autohide="true"] ~ #TabsToolbar .titlebar-buttonbox-container,
#main-window[tabsintitlebar][sizemode="fullscreen"] #navigator-toolbox #PanelUI-button,
#main-window #TabsToolbar #window-controls {
  display: none !important;
}

/* hide non-required items */
/*#TabsToolbar .private-browsing-indicator,*/
#TabsToolbar #window-controls,
#TabsToolbar *[type="caption-buttons"],
#TabsToolbar *[type="pre-tabs"],
#TabsToolbar *[type="post-tabs"] {
  display: none !important;
}

/* adjust private mode icon position */
@media (-moz-os-version:windows-win10), (-moz-os-version:windows-win8), (-moz-os-version:windows-win7) {
	#main-window[privatebrowsingmode=temporary]:not([inDOMFullscreen="true"]) #TabsToolbar .private-browsing-indicator {
	  position: fixed !important;
	  top: 0 !important;
	  right: 130px !important;
	  visibility: visible !important;
	  display: block !important;
	}
	#main-window[privatebrowsingmode=temporary][sizemode="maximized"]:not([inDOMFullscreen="true"]) #TabsToolbar .private-browsing-indicator {
	  top: 8px !important;
	}
}
/* adjust tabs toolbar padding */
#main-window:-moz-any([sizemode="normal"],[sizemode="maximized"],[sizemode="fullscreen"]) #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window[tabsintitlebar]:-moz-any([sizemode="normal"],[sizemode="maximized"],[sizemode="fullscreen"]) #navigator-toolbox #toolbar-menubar[autohide="true"][inactive="true"] ~ #TabsToolbar,
#main-window:-moz-any([sizemode="normal"],[sizemode="maximized"],[sizemode="fullscreen"]) #navigator-toolbox #TabsToolbar,
#main-window[tabsintitlebar]:-moz-any([sizemode="normal"],[sizemode="maximized"],[sizemode="fullscreen"]) #navigator-toolbox #TabsToolbar {
 -moz-padding-start: 0px !important;
 -moz-margin-start: 0px !important;
}

/* hide line above navigation toolbar appearing in some cases */
#main-window:not([tabsintitlebar]) #nav-bar,
#main-window:not([tabsintitlebar]) #navigator-toolbox {
  border-top: 0 !important;
  box-shadow: unset !important;
}

/* disable Mozillas tab jumping nonsense when moving tabs */
#navigator-toolbox[movingtab] > #titlebar > #TabsToolbar {
  padding-bottom: unset !important;
}
#navigator-toolbox[movingtab] #tabbrowser-tabs {
  padding-bottom: unset !important;
  margin-bottom: unset !important;
}
#navigator-toolbox[movingtab] > #nav-bar {
  margin-top: unset !important;
}

/* size of new tab tabs '+' icon */
.tabs-newtab-button .toolbarbutton-icon {
  padding: 0px !important;
  margin: 0px !important;
  width: 18px !important;
  height: 18px !important;
}

/* some id!ot at Moz thought it is a great idea to add padding and margin values here */
@media (-moz-os-version:windows-win8), (-moz-os-version:windows-win7) {
  #TabsToolbar > .toolbar-items {
    padding-top: 0 !important;
	margin-top: 0 !important;
  }
}
/* TABS: on bottom */
#navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) {-moz-box-ordinal-group:10}
#TabsToolbar {-moz-box-ordinal-group:1000!important}
#TabsToolbar {
 position: absolute !important;
 bottom: 0 !important;
 width: 100vw !important;
 display: block !important;
}
#tabbrowser-tabs {
  top: 300 !important;
  width: 100vw !important;
}
#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
	padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
}
/* TABS: height */
:root {
 --tab-toolbar-navbar-overlap: 0px !important;
 --tab-min-height: 33px !important; /* adjust to suit your needs */
 --tab-min-height_tnot: 32px;
}
:root #tabbrowser-tabs {
 --tab-min-height: 33px !important; /* needs to be the same as above under :root */
 --tab-min-width: 80px !important;
}
#TabsToolbar {
	height: var(--tab-min-height) !important;
	margin-bottom: 1px !important;
	box-shadow: ThreeDShadow 0 -1px inset, -moz-dialog 0 1px !important;
	background-color: var(--toolbar-bgcolor) !important;
}
/* hide windows-controls */
#TabsToolbar #window-controls {display:none!important;}
/* move caption buttons to right of Tab bar */
#main-window[tabsintitlebar]:not([inFullscreen="true"]) #toolbar-menubar[autohide="true"] ~ #TabsToolbar .titlebar-buttonbox-container {
	position: fixed !important;
	right: 0 !important;
	top: calc(6px + var(--tab-min-height)) !important;
	display: block !important;
	visibility: visible !important;
}
#toolbar-menubar[autohide="true"] ~ #TabsToolbar {padding-right: 100px !important;}

cor-el மூலமாக திருத்தப்பட்டது

Helpful?

தீர்வு தேர்ந்தெடுக்கப்பட்டது

You can try this change. If it doesn't work and I haven't tested the code as it mainly is code for Windows and I'm not on that platform then best is to go to Firefox CSS subreddit.

Old code:

#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
}

New code:

#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(1px + var(--tab-min-height_tnot)) !important;
  position: relative !important;
}

Helpful?

cor-el

Your change WORKED!!!!

Thank you so very, very much.

Out of curiosity, is there anywhere on the web that I can learn how to read that chrome.css file?

THANK YOU, THANK YOU, THANK YOU, THANK YOU, THANK YOU.

Helpful?

கேள்வி எழுப்பு

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