/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ @namespace html url("http://www.w3.org/1999/xhtml"); :root { --tab-min-height: 36px; --inline-tab-padding: 8px; --tab-border-radius: 4px; --tab-shadow-max-size: 6px; --tab-block-margin: 4px; /* --tabpanel-background-color matches $in-content-page-background in newtab (browser/components/newtab/content-src/styles/_variables.scss) */ --tabpanel-background-color: #F9F9FB; --tab-attention-icon-color: rgb(42,195,162); } #tabbrowser-tabpanels browser[type=content] { color-scheme: env(-moz-content-preferred-color-scheme); } @media (-moz-content-prefers-color-scheme: dark) { :root { /* --tabpanel-background-color matches $in-content-page-background in newtab (browser/components/newtab/content-src/styles/_variables.scss) */ --tabpanel-background-color: #2B2A33; } } :root[privatebrowsingmode=temporary] { /* Value for --in-content-page-background in aboutPrivateBrowsing.css. !important overrides the direct setting of this variable in ThemeVariableMap.sys.mjs when the user has a theme that defines ntp_background. */ --tabpanel-background-color: #25003e !important; } :root[uidensity=compact] { --tab-min-height: 29px; } :root[uidensity=touch] { --tab-min-height: 41px; } toolbar[brighttext] { --tab-attention-icon-color: rgb(84,255,189); } #tabbrowser-tabs { --tab-min-width: 76px; --tab-loading-fill: #0A84FF; --tab-overflow-pinned-tabs-width: 0px; padding-inline: var(--tab-overflow-pinned-tabs-width) 0; /* Use a bigger flex value than the searchbar to prevent it from * taking all the toolbar space. */ flex: 1000 1000; } #tabbrowser-tabpanels { appearance: none; padding: 0; color-scheme: unset; background-color: var(--tabpanel-background-color); } #tabbrowser-tabs, #tabbrowser-arrowscrollbox, #tabbrowser-tabs[positionpinnedtabs] > #tabbrowser-arrowscrollbox > .tabbrowser-tab[pinned] { min-height: var(--tab-min-height); } .tab-background, .tab-stack { min-height: inherit; } #tabbrowser-tabs[positionpinnedtabs] > #tabbrowser-arrowscrollbox::part(scrollbox) { /* Add padding to match the shadow's blur radius so the shadow doesn't get clipped when either the first or last tab is selected */ padding-inline: var(--tab-shadow-max-size); } #tabbrowser-arrowscrollbox::part(scrollbox-clip) { /* Needed to prevent tabstrip from growing as wide as the sum of the tabs' page-title widths when emulating XUL with modern flexbox. */ contain: inline-size; } .tabbrowser-tab { appearance: none; background-color: transparent; color-scheme: unset; border-radius: 0; border-width: 0; margin: 0; padding: 0 2px; align-items: stretch; /* Needed so that overflowing content overflows towards the end rather than getting centered. That prevents tab opening animation from looking off at the start, see bug 1759221. */ justify-content: flex-start; overflow: clip; /* Needed to avoid clipping the tab-background shadow, which has a 4px blur * (we only have 2px padding in the inline direction) */ overflow-clip-margin: 2px; min-height: var(--tab-min-height); } .tabbrowser-tab[pinned] { flex-shrink: 0; } /* tabbrowser-tab keyboard focus */ .keyboard-focused-tab > .tab-stack > .tab-background, .tabbrowser-tab:focus:not([aria-activedescendant]) > .tab-stack > .tab-background { outline: var(--focus-outline); outline-offset: var(--focus-outline-inset); } .tab-content { padding: 0 var(--inline-tab-padding); min-width: 0; } :root:not([uidensity=compact]) .tab-content[pinned] { padding: 0 10px; } @media (prefers-reduced-motion: no-preference) { .tab-loading-burst { border-radius: inherit; position: relative; overflow: hidden; } .tab-loading-burst::before { position: absolute; content: ""; /* We set the width to be a percentage of the tab's width so that we can use the `scale` transform to scale it up to the full size of the tab when the burst occurs. We also need to set the margin-inline-start so that the center of the burst matches the center of the favicon. */ width: 5%; height: 100%; /* Center the burst over the .tab-loading-burst; it's 9px from the edge thanks to .tab-content, plus 8px more since .tab-loading-burst is 16px wide. */ margin-inline-start: calc(17px - 2.5%); } .tab-loading-burst[pinned]::before { /* This is like the margin-inline-start rule above, except that icons for pinned tabs are 12px from the edge. */ margin-inline-start: calc(20px - 2.5%); } .tab-loading-burst[bursting]::before { background-image: url("chrome://browser/skin/tabbrowser/loading-burst.svg"); background-position: center center; background-size: 100% auto; background-repeat: no-repeat; animation: tab-burst-animation 375ms cubic-bezier(0,0,.58,1); -moz-context-properties: fill; fill: var(--tab-loading-fill); } .tab-loading-burst[bursting][notselectedsinceload]::before { animation-name: tab-burst-animation-light; } @keyframes tab-burst-animation { 0% { opacity: 0.4; transform: scale(1); } 100% { opacity: 0; transform: scale(40); } } @keyframes tab-burst-animation-light { 0% { opacity: 0.2; transform: scale(1); } 100% { opacity: 0; transform: scale(40); } } } /* Width/height & margins apply on tab icon stack children */ .tab-throbber-tabslist, .tab-throbber, .tab-icon-pending, .tab-icon-image, .tab-sharing-icon-overlay, .tab-icon-overlay { height: 16px; width: 16px; } .tab-throbber:not([pinned]), .tab-icon-pending:not([pinned]), .tab-icon-image:not([pinned]), .tab-sharing-icon-overlay:not([pinned]), .tab-icon-overlay:not([pinned]) { margin-inline-end: 5.5px; } @media (prefers-reduced-motion: reduce) { .tab-throbber[busy] { background-image: url("chrome://browser/skin/tabbrowser/hourglass.svg"); background-position: center; background-repeat: no-repeat; -moz-context-properties: fill; fill: currentColor; opacity: 0.4; } .tab-throbber[progress] { opacity: 0.8; } } @media (prefers-reduced-motion: no-preference) { :root[sessionrestored] .tab-throbber[busy] { position: relative; overflow: hidden; } :root[sessionrestored] .tab-throbber[busy]::before { content: ""; position: absolute; background-image: url("chrome://browser/skin/tabbrowser/loading.svg"); background-position: left center; background-repeat: no-repeat; width: 480px; height: 100%; animation: tab-throbber-animation 1.05s steps(30) infinite; -moz-context-properties: fill; /* XXX: It would be nice to transition between the "connecting" color and the "loading" color (see the `.tab-throbber[progress]::before` rule below); however, that currently forces main thread painting. When this is fixed (after WebRender lands), we can do something like `transition: fill 0.333s, opacity 0.333s;` */ fill: currentColor; opacity: 0.7; } :root[sessionrestored] .tab-throbber[busy]:-moz-locale-dir(rtl)::before { animation-name: tab-throbber-animation-rtl; } @keyframes tab-throbber-animation { 0% { transform: translateX(0); } 100% { transform: translateX(-100%); } } @keyframes tab-throbber-animation-rtl { 0% { transform: translateX(0); } 100% { transform: translateX(100%); } } :root[sessionrestored] .tab-throbber[progress]::before { fill: var(--tab-loading-fill); opacity: 1; } #TabsToolbar[brighttext] .tab-throbber[progress]:not([selected=true])::before { fill: var(--lwt-tab-loading-fill-inactive, #84c1ff); } } .tab-icon-image { -moz-context-properties: fill; fill: currentColor; } .tab-icon-image:not([src]), .tab-icon-image:-moz-broken { content: url("chrome://global/skin/icons/defaultFavicon.svg"); } .tab-icon-image[sharing]:not([selected]), .tab-sharing-icon-overlay { animation: 3s linear tab-sharing-icon-pulse infinite; } @keyframes tab-sharing-icon-pulse { 0%, 16.66%, 83.33%, 100% { opacity: 0; } 33.33%, 66.66% { opacity: 1; } } .tab-icon-image[sharing]:not([selected]) { animation-delay: -1.5s; } .tab-sharing-icon-overlay { position: relative; -moz-context-properties: fill; fill: rgb(224, 41, 29); } .tab-sharing-icon-overlay[sharing="camera"] { list-style-image: url("chrome://browser/skin/notification-icons/camera.svg"); } .tab-sharing-icon-overlay[sharing="microphone"] { list-style-image: url("chrome://browser/skin/notification-icons/microphone.svg"); } .tab-sharing-icon-overlay[sharing="screen"] { list-style-image: url("chrome://browser/skin/notification-icons/screen.svg"); } .tab-icon-overlay { width: 16px; height: 16px; position: relative; } .tab-icon-overlay:not([crashed]):is([pinned], [sharing]) { top: -5.5px; inset-inline-end: -6px; z-index: 1; /* Overlay tab title */ padding: 2px; } :root[uidensity=compact] .tab-icon-stack[indicator-replaces-favicon] > :not(.tab-icon-overlay), #tabbrowser-tabs[secondarytext-unsupported] .tab-icon-stack[indicator-replaces-favicon] > :not(.tab-icon-overlay), :root:not([uidensity=compact]) #tabbrowser-tabs:not([secondarytext-unsupported]) .tabbrowser-tab:not(:hover) .tab-icon-overlay[indicator-replaces-favicon], :root:not([uidensity=compact]) #tabbrowser-tabs:not([secondarytext-unsupported]) .tabbrowser-tab:hover .tab-icon-stack[indicator-replaces-favicon] > :not(.tab-icon-overlay) { opacity: 0; } .tab-icon-overlay[soundplaying]:not([crashed]), .tab-icon-overlay[muted]:not([crashed]), .tab-icon-overlay[activemedia-blocked]:not([crashed]) { border-radius: 10px; -moz-context-properties: fill, fill-opacity, stroke; fill: currentColor; stroke: transparent; } .tab-icon-overlay:is([pinned], [sharing]):not([crashed]) { stroke: var(--tab-icon-overlay-stroke, white); color: var(--tab-icon-overlay-fill, black); } .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[soundplaying]:hover, .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[muted]:hover, .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[activemedia-blocked]:hover { background-color: var(--tab-icon-overlay-stroke, white); } #TabsToolbar[brighttext] .tab-icon-overlay:is([pinned], [sharing]):not([crashed]) { stroke: var(--tab-icon-overlay-stroke, black); color: var(--tab-icon-overlay-fill, white); } #TabsToolbar[brighttext] .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[soundplaying]:hover, #TabsToolbar[brighttext] .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[muted]:hover, #TabsToolbar[brighttext] .tab-icon-overlay:is([pinned], [sharing]):not([crashed])[activemedia-blocked]:hover { background-color: var(--tab-icon-overlay-stroke, black); } .tab-icon-overlay[indicator-replaces-favicon] { border-radius: 2px; fill-opacity: 0.75; padding: 2px; } .tab-icon-overlay[indicator-replaces-favicon]:hover { background-color: color-mix(in srgb, currentColor 15%, transparent); fill-opacity: 0.95; } .tab-icon-overlay[indicator-replaces-favicon]:hover:active { background-color: color-mix(in srgb, currentColor 30%, transparent); } .tab-icon-overlay[soundplaying] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-playing-small.svg"); } .tab-icon-overlay[muted] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg"); } .tab-icon-overlay[activemedia-blocked] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg"); } .tab-icon-overlay[crashed] { list-style-image: url("chrome://browser/skin/tabbrowser/crashed.svg"); } @media (prefers-reduced-motion: reduce) { .tab-throbber-tabslist[busy] { list-style-image: url("chrome://browser/skin/tabbrowser/hourglass.svg"); -moz-context-properties: fill; fill: currentColor; opacity: 0.4; } .tab-throbber-tabslist[progress] { opacity: 0.8; } } @media (prefers-reduced-motion: no-preference) { .tab-throbber-tabslist[busy] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-connecting.png"); } .tab-throbber-tabslist[progress] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-loading.png"); } :root[lwt-popup-brighttext] .tab-throbber-tabslist[progress]:not([selected=true]) { list-style-image: url("chrome://browser/skin/tabbrowser/tab-loading-inverted.png"); } @media (min-resolution: 1.1dppx) { .tab-throbber-tabslist[busy] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-connecting@2x.png"); } .tab-throbber-tabslist[progress] { list-style-image: url("chrome://browser/skin/tabbrowser/tab-loading@2x.png"); } :root[lwt-popup-brighttext] .tab-throbber-tabslist[progress]:not([selected=true]) { list-style-image: url("chrome://browser/skin/tabbrowser/tab-loading-inverted@2x.png"); } } } .tab-label { margin-inline: 0; } .tab-close-button { -moz-context-properties: fill, fill-opacity; margin-inline-end: calc(var(--inline-tab-padding) / -2); width: 24px; height: 24px; padding: 6px; border-radius: var(--tab-border-radius); list-style-image: url(chrome://global/skin/icons/close-12.svg); } /* The following rulesets allow showing more of the tab title */ .tabbrowser-tab:not([labelendaligned],:hover) > .tab-stack > .tab-content > .tab-close-button { padding-inline-start: 0; width: 18px; } .tabbrowser-tab[visuallyselected=true]:not([labelendaligned]):hover, #tabbrowser-tabs:not([closebuttons=activetab]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab:not([visuallyselected=true],[labelendaligned]):hover { --tab-label-mask-size: 1em; } #tabbrowser-tabs[secondarytext-unsupported] .tab-secondary-label { display: none; } #tabbrowser-tabs:not([secondarytext-unsupported]) .tab-label-container { height: 2.7em; } .tab-secondary-label { font-size: .75em; opacity: .8; } .tab-icon-sound-label { /* Set height back to equivalent of parent's 1em based on the .tab-icon-sound having a reduced font-size */ height: 1.3333em; white-space: nowrap; margin: 0; } .tab-secondary-label[soundplaying-scheduledremoval]:not([muted]):not(:hover) { transition: opacity .3s linear var(--soundplaying-removal-delay); opacity: 0; } /* Tab Overflow */ #tabbrowser-arrowscrollbox:not([scrolledtostart])::part(overflow-start-indicator), #tabbrowser-arrowscrollbox:not([scrolledtoend])::part(overflow-end-indicator) { width: 7px; /* The width is the sum of the inline margins */ background-image: radial-gradient(ellipse at bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.1) 7.6%, rgba(0,0,0,0) 87.5%); background-repeat: no-repeat; background-position: -3px; border-left: .5px solid rgba(255,255,255,.2); pointer-events: none; position: relative; border-bottom: .5px solid transparent; } #tabbrowser-arrowscrollbox:not([scrolledtostart])::part(overflow-start-indicator) { margin-inline: -.5px -6.5px; } #tabbrowser-arrowscrollbox:not([scrolledtoend])::part(overflow-end-indicator) { margin-inline: -6.5px -.5px; } #tabbrowser-arrowscrollbox:-moz-locale-dir(rtl)::part(overflow-start-indicator), #tabbrowser-arrowscrollbox:-moz-locale-dir(ltr)::part(overflow-end-indicator) { transform: scaleX(-1); } #tabbrowser-arrowscrollbox[scrolledtostart]::part(overflow-start-indicator), #tabbrowser-arrowscrollbox[scrolledtoend]::part(overflow-end-indicator) { opacity: 0; } #tabbrowser-arrowscrollbox::part(overflow-start-indicator), #tabbrowser-arrowscrollbox::part(overflow-end-indicator) { transition: opacity 150ms ease; } .tabbrowser-tab:not([visuallyselected=true], [multiselected]), .tabbrowser-tab:-moz-lwtheme { color: inherit; } .tab-background { border-radius: var(--tab-border-radius); margin-block: var(--tab-block-margin); } /* Selected tab and tab hover */ #TabsToolbar #firefox-view-button:hover:not([open]) > .toolbarbutton-icon, .tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true], [multiselected]) { background-color: color-mix(in srgb, currentColor 11%, transparent); } #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon, #tabbrowser-tabs:not([noshadowfortests]) .tab-background:is([selected], [multiselected]) { box-shadow: 0 0 4px rgba(0,0,0,.4); } #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon, .tab-background:is([selected], [multiselected]) { background-color: var(--tab-selected-bgcolor, var(--toolbar-bgcolor)); background-origin: border-box; background-repeat: repeat-x; } .tabbrowser-tab:is([selected], [multiselected]):-moz-lwtheme { color: var(--lwt-tab-text, var(--toolbar-color)); } @media (prefers-contrast) { #TabsToolbar #firefox-view-button:is([open], :hover):not(:focus-visible) > .toolbarbutton-icon, .tab-background[selected], .tabbrowser-tab:hover > .tab-stack > .tab-background { outline: 1px solid currentColor; outline-offset: -1px; } } @media not (prefers-contrast) { #TabsToolbar #firefox-view-button[open]:not(:focus-visible) > .toolbarbutton-icon:-moz-lwtheme, .tab-background[selected]:not([multiselected=true]):-moz-lwtheme { outline: 1px solid var(--lwt-tab-line-color, var(--lwt-tabs-border-color, currentColor)); outline-offset: -1px; } } /* Add a focus outline on top of the multiselected tabs, with the currently selected tab getting a slightly thicker outline. */ .tab-background[multiselected=true] { outline: 1px solid var(--focus-outline-color); outline-offset: -1px; } .tab-background[multiselected=true][selected=true] { outline-width: 2px; outline-offset: -2px; } /* * LightweightThemeConsumer will set the current lightweight theme's header * image to the lwt-header-image variable, used in each of the following rulesets. */ #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon:-moz-lwtheme, #tabbrowser-tabs:not([movingtab]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab > .tab-stack > .tab-background[multiselected=true]:-moz-lwtheme, #tabbrowser-tabs:not([movingtab]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab > .tab-stack > .tab-background[selected=true]:-moz-lwtheme { background-attachment: scroll, scroll, fixed; background-color: transparent; background-image: linear-gradient(var(--lwt-selected-tab-background-color, transparent), var(--lwt-selected-tab-background-color, transparent)), linear-gradient(var(--toolbar-bgcolor), var(--toolbar-bgcolor)), var(--lwt-header-image, none); background-position: 0 0, 0 0, right top; background-repeat: repeat-x, repeat-x, no-repeat; background-size: auto 100%, auto 100%, auto auto; } /* Pinned tabs */ .tabbrowser-tab:is([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected="true"]), .tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected="true"]), #firefox-view-button[attention] { background-image: radial-gradient(circle, var(--tab-attention-icon-color), var(--tab-attention-icon-color) 2px, transparent 2px); background-position: center bottom calc(6.5px + var(--tabs-navbar-shadow-size)); background-size: 4px 4px; background-repeat: no-repeat; } .tabbrowser-tab[image] > .tab-stack > .tab-content[attention]:not([pinned], [selected="true"]) { background-position-x: left 14px; } .tabbrowser-tab[image] > .tab-stack > .tab-content[attention]:not([pinned], [selected="true"]):-moz-locale-dir(rtl) { background-position-x: right 14px; } #tabbrowser-tabs[haspinnedtabs]:not([positionpinnedtabs]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab[first-visible-unpinned-tab] { /* Add a gap between the last pinned tab and the first visible tab */ margin-inline-start: 12px !important; /* .tabbrowser-tab sets margin: 0 !important; */ } .tab-label[attention]:not([selected="true"]) { font-weight: bold; } /* Tab drag and drop */ .tab-drop-indicator { width: 12px; margin-inline-start: -12px; background: url(chrome://browser/skin/tabbrowser/tab-drag-indicator.svg) no-repeat center; position: relative; z-index: 2; pointer-events: none; } /* Drag space */ .titlebar-spacer[type="pre-tabs"], .titlebar-spacer[type="post-tabs"] { width: 40px; } @media (max-width: 500px) { .titlebar-spacer[type="post-tabs"] { display: none; } } /* Firefox View button and menu item */ :root:not([privatebrowsingmode=temporary], [firefoxviewhidden]) :is(toolbarbutton, toolbarpaletteitem) + #tabbrowser-tabs, :root[privatebrowsingmode=temporary]:not([firefoxviewhidden]) :is( toolbarbutton:not(#firefox-view-button), toolbarpaletteitem:not(#wrapper-firefox-view-button) ) + #tabbrowser-tabs { border-inline-start: 1px solid color-mix(in srgb, currentColor 25%, transparent); padding-inline-start: calc(var(--tab-overflow-pinned-tabs-width) + 2px); margin-inline-start: 2px; } :root[privatebrowsingmode=temporary] :is(#firefox-view-button, #menu_openFirefoxView) { display: none; } toolbar:not(#TabsToolbar) #firefox-view-button { background-position: top 25% right 25%; } :is(#widget-overflow-mainView, #widget-overflow-fixed-list) #firefox-view-button { background-position: top 25% left 22px; } /* RTL notification dot */ toolbar:not(#TabsToolbar) #firefox-view-button:-moz-locale-dir(rtl) { background-position-x: left 25%; } :is(#widget-overflow-mainView, #widget-overflow-fixed-list) #firefox-view-button:-moz-locale-dir(rtl) { background-position-x: right 22px; } /* Tab bar scroll arrows */ #tabbrowser-arrowscrollbox::part(scrollbutton-up), #tabbrowser-arrowscrollbox::part(scrollbutton-down) { fill: var(--toolbarbutton-icon-fill); } /* New tab button */ #tabs-newtab-button, #TabsToolbar #new-tab-button { list-style-image: url(chrome://global/skin/icons/plus.svg); } /* All tabs button and menupopup */ #alltabs-button { list-style-image: url(chrome://global/skin/icons/arrow-down.svg); } #tabbrowser-tabs[hiddensoundplaying] ~ #alltabs-button > .toolbarbutton-badge-stack > .toolbarbutton-badge { background: transparent url(chrome://browser/skin/tabbrowser/tab-audio-playing-small.svg); box-shadow: none; /* Match the color of the button, rather than label default. */ color: inherit; display: block; -moz-context-properties: fill, fill-opacity, stroke; fill: currentColor; stroke: transparent; /* "!important" is necessary to override the rule in toolbarbutton.css */ margin: -7px 0 0 !important; margin-inline-end: -4px !important; min-width: 12px; min-height: 12px; } /* The list of tabs is in its own panel-subview-body which will scroll. We don't want any padding below the scrollbar, so remove the bottom padding from the outer panel-subview-body. */ #allTabsMenu-allTabsView > .panel-subview-body { padding-bottom: 0; } #allTabsMenu-allTabsView-tabs { padding-top: 0; } .all-tabs-item { margin-inline: var(--arrowpanel-menuitem-margin-inline); border-radius: var(--arrowpanel-menuitem-border-radius); } .all-tabs-item[selected] { font-weight: bold; } .all-tabs-item > toolbarbutton { margin: 0; } .all-tabs-item > toolbarbutton:hover { background-color: var(--panel-item-hover-bgcolor); } .all-tabs-item > toolbarbutton:hover:active { background-color: var(--panel-item-active-bgcolor); } .all-tabs-button { list-style-image: url("chrome://global/skin/icons/defaultFavicon.svg"); } .all-tabs-secondary-button { -moz-context-properties: fill; fill: currentColor; } .all-tabs-secondary-button > label { display: none !important; /* override panelUI-shared.css */ } .all-tabs-secondary-button:hover { opacity: 1; } .all-tabs-mute-button[soundplaying] { list-style-image: url(chrome://global/skin/media/audio.svg); } .all-tabs-mute-button[muted] { list-style-image: url(chrome://global/skin/media/audio-muted.svg); } .all-tabs-close-button { list-style-image: url(chrome://global/skin/icons/close-12.svg); } .all-tabs-close-button > .toolbarbutton-icon { margin-inline: 2px !important; /* override panelUI-shared.css */ }