Add m-esr52 at 52.6.0

122 files changed, 4349 insertions, 0 deletions

diff --git a/browser/themes/linux/Info.png b/browser/themes/linux/Info.png
new file mode 100644
index 000000000..d14479852
--- /dev/null
+++ b/browser/themes/linux/Info.png
diff --git a/browser/themes/linux/Privacy-16.png b/browser/themes/linux/Privacy-16.png
new file mode 100644
index 000000000..013cdc4b9
--- /dev/null
+++ b/browser/themes/linux/Privacy-16.png
diff --git a/browser/themes/linux/Security-broken.png b/browser/themes/linux/Security-broken.png
new file mode 100644
index 000000000..1ec110be4
--- /dev/null
+++ b/browser/themes/linux/Security-broken.png
diff --git a/browser/themes/linux/Toolbar-inverted.png b/browser/themes/linux/Toolbar-inverted.png
new file mode 100644
index 000000000..50a3d346f
--- /dev/null
+++ b/browser/themes/linux/Toolbar-inverted.png
diff --git a/browser/themes/linux/Toolbar-inverted@2x.png b/browser/themes/linux/Toolbar-inverted@2x.png
new file mode 100644
index 000000000..3472548d2
--- /dev/null
+++ b/browser/themes/linux/Toolbar-inverted@2x.png
diff --git a/browser/themes/linux/Toolbar-small.png b/browser/themes/linux/Toolbar-small.png
new file mode 100644
index 000000000..8f100a54a
--- /dev/null
+++ b/browser/themes/linux/Toolbar-small.png
diff --git a/browser/themes/linux/Toolbar.png b/browser/themes/linux/Toolbar.png
new file mode 100644
index 000000000..cdd100aa5
--- /dev/null
+++ b/browser/themes/linux/Toolbar.png
diff --git a/browser/themes/linux/Toolbar@2x.png b/browser/themes/linux/Toolbar@2x.png
new file mode 100644
index 000000000..3244081c3
--- /dev/null
+++ b/browser/themes/linux/Toolbar@2x.png
diff --git a/browser/themes/linux/aboutSessionRestore-window-icon.png b/browser/themes/linux/aboutSessionRestore-window-icon.png
new file mode 100644
index 000000000..a99832372
--- /dev/null
+++ b/browser/themes/linux/aboutSessionRestore-window-icon.png
diff --git a/browser/themes/linux/aboutSyncTabs.css b/browser/themes/linux/aboutSyncTabs.css
new file mode 100644
index 000000000..4cedad649
--- /dev/null
+++ b/browser/themes/linux/aboutSyncTabs.css
@@ -0,0 +1,101 @@
+/* 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/. */
+
+#tabs-display,
+#tabsList {
+  background-color: transparent;
+  -moz-appearance: none;
+  margin: 0;
+}
+
+#tabsList {
+  width: 100%;
+}
+
+#tabs-display {
+  background: #fff url(chrome://browser/skin/sync-bg.png) repeat-x center -80px;
+}
+
+#headers {
+  background: url(chrome://browser/skin/sync-32.png) no-repeat;
+  margin-top: 4px;
+  width: 45em;
+  height: 32px;
+  margin-inline-start: 2em;
+  margin-inline-end: 2em;
+}
+
+#tabsListHeading {
+  font-size: 140%;
+  font-weight: bold;
+  margin-inline-start: 40px;
+}
+
+richlistitem {
+  margin-inline-end: 2em;
+}
+
+richlistitem[selected="true"],
+richlistitem:focus {
+  outline-style: none;
+}
+
+richlistitem[type="tab"] {
+  min-height: 3em;
+  border: #999999 1px solid !important;
+  padding: 2px 5px;
+  margin-bottom: 4px;
+  margin-inline-start: 4em;
+  border-radius: 6px;
+  background-color: menu;
+  width: 44em;
+  opacity: 0.9;
+  box-shadow:
+    inset rgba(255, 255, 255, 0.5) 0 1px 0px,
+    inset rgba(0, 0, 0, 0.1) 0 -2px 0px,
+    rgba(0, 0, 0, 0.1) 0px 1px 0px;
+}
+
+richlistitem[type="tab"][selected="true"] {
+  background-color: -moz-MenuHover;
+}
+
+richlistitem[type="client"] {
+  min-height: 2em;
+  color: #000000;
+  margin-inline-start: 2em;
+  margin-top: 2px;
+  margin-bottom: 3px;
+  width: 42em;
+  border-radius: 6px;
+  background-color: transparent;
+  -moz-user-focus: ignore !important;
+}
+richlistitem.mobile[type="client"] {
+  list-style-image: url("chrome://browser/skin/sync-mobileIcon.svg#icon");
+}
+richlistitem.desktop[type="client"] {
+  list-style-image: url("chrome://browser/skin/sync-desktopIcon.svg#icon");
+}
+
+.title,
+.clientName {
+  color: #000000;
+  font-size: 1.1em;
+}
+
+.title[selected="true"],
+.url[selected="true"] {
+  color: inherit;
+}
+
+.url {
+  color: -moz-nativehyperlinktext;
+  font-size: 0.95em;
+}
+
+.tabIcon {
+  padding-inline-start: 2px;
+  padding-top: 2px;
+}
diff --git a/browser/themes/linux/actionicon-tab.png b/browser/themes/linux/actionicon-tab.png
new file mode 100644
index 000000000..433c25e1a
--- /dev/null
+++ b/browser/themes/linux/actionicon-tab.png
diff --git a/browser/themes/linux/browser-lightweightTheme.css b/browser/themes/linux/browser-lightweightTheme.css
new file mode 100644
index 000000000..d3109bec3
--- /dev/null
+++ b/browser/themes/linux/browser-lightweightTheme.css
@@ -0,0 +1,31 @@
+/* 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/. */
+
+%include linuxShared.inc
+%filter substitution
+
+/*
+ * LightweightThemeListener will append the current lightweight theme's header
+ * image to the background-image for each of the following rulesets.
+ */
+
+/* Lightweight theme on tabs */
+#tabbrowser-tabs:not([movingtab]) > .tabbrowser-tab > .tab-stack > .tab-background > .tab-background-start[selected=true]:-moz-lwtheme::before,
+#tabbrowser-tabs:not([movingtab]) > .tabbrowser-tab > .tab-stack > .tab-background > .tab-background-end[selected=true]:-moz-lwtheme::before {
+  background-attachment: scroll, fixed;
+  background-color: transparent;
+  background-image: @fgTabTextureLWT@;/*, lwtHeader;*/
+  background-position: 0 0, right top;
+  background-repeat: repeat-x, no-repeat;
+}
+
+#tabbrowser-tabs:not([movingtab]) > .tabbrowser-tab > .tab-stack > .tab-background > .tab-background-middle[selected=true]:-moz-lwtheme {
+  background-attachment: scroll, scroll, fixed;
+  background-color: transparent;
+  background-image: url(chrome://browser/skin/tabbrowser/tab-active-middle.png),
+                    @fgTabTextureLWT@;/*,
+                    lwtHeader;*/
+  background-position: 0 0, 0 0, right top;
+  background-repeat: repeat-x, repeat-x, no-repeat;
+}
diff --git a/browser/themes/linux/browser.css b/browser/themes/linux/browser.css
new file mode 100644
index 000000000..73d3844a2
--- /dev/null
+++ b/browser/themes/linux/browser.css
@@ -0,0 +1,1658 @@
+%if 0
+/* 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/. */
+%endif
+
+@import url("chrome://global/skin/");
+
+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+@namespace html url("http://www.w3.org/1999/xhtml");
+@namespace svg url("http://www.w3.org/2000/svg");
+
+%include ../shared/browser.inc
+%include linuxShared.inc
+%filter substitution
+
+%define forwardTransitionLength 150ms
+%define conditionalForwardWithUrlbar window:not([chromehidden~="toolbar"]) #urlbar-wrapper
+
+:root {
+  --backbutton-urlbar-overlap: 6px;
+  /* icon width + border + horizontal padding (without the overlap from backbutton-urlbar-overlap) */
+  --forwardbutton-width: 25px;
+
+  --toolbarbutton-hover-background: rgba(255,255,255,.5) linear-gradient(rgba(255,255,255,.5), transparent);
+  --toolbarbutton-hover-bordercolor: rgba(0,0,0,.25);
+  --toolbarbutton-hover-boxshadow: none;
+
+  --toolbarbutton-active-background: rgba(154,154,154,.5) linear-gradient(rgba(255,255,255,.7), rgba(255,255,255,.4));
+  --toolbarbutton-active-bordercolor: rgba(0,0,0,.3);
+  --toolbarbutton-active-boxshadow: 0 1px 1px rgba(0,0,0,.1) inset, 0 0 1px rgba(0,0,0,.3) inset;
+
+  --toolbarbutton-checkedhover-backgroundcolor: rgba(200,200,200,.5);
+
+  --panel-separator-color: ThreeDShadow;
+  --arrowpanel-dimmed: hsla(0,0%,80%,.3);
+  --arrowpanel-dimmed-further: hsla(0,0%,80%,.45);
+  --arrowpanel-dimmed-even-further: hsla(0,0%,80%,.8);
+
+  --urlbar-separator-color: ThreeDShadow;
+}
+
+#menubar-items {
+  -moz-box-orient: vertical; /* for flex hack */
+}
+
+#main-menubar {
+  -moz-box-flex: 1; /* make menu items expand to fill toolbar height */
+}
+
+#navigator-toolbox {
+  -moz-appearance: none;
+  background-color: transparent;
+  border-top: none;
+}
+
+#navigator-toolbox::after {
+  content: "";
+  display: -moz-box;
+  -moz-box-ordinal-group: 101; /* tabs toolbar is 100 */
+  border-bottom: 1px solid ThreeDShadow;
+}
+
+#navigator-toolbox:-moz-lwtheme::after {
+  border-bottom-color: rgba(0,0,0,.3);
+}
+
+#navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar):not(#addon-bar) {
+  background-image: linear-gradient(@toolbarHighlight@, @toolbarHighlight@);
+}
+
+#navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar):not(#addon-bar):-moz-lwtheme {
+  background-image: linear-gradient(@toolbarHighlightLWT@, @toolbarHighlightLWT@);
+}
+
+#navigator-toolbox > toolbar:not(:-moz-lwtheme):not(#toolbar-menubar):not(#TabsToolbar) {
+  -moz-appearance: none;
+  border-style: none;
+  background-color: -moz-Dialog;
+}
+
+#navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar):not(#nav-bar):not(#addon-bar) {
+  overflow: -moz-hidden-unscrollable;
+  max-height: 4em;
+  transition: min-height 170ms ease-out, max-height 170ms ease-out;
+  padding: 1px 4px;
+}
+
+#navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar):not(#nav-bar):not(#addon-bar)[collapsed=true] {
+  min-height: 0.1px;
+  max-height: 0;
+  transition: min-height 170ms ease-out, max-height 170ms ease-out, visibility 170ms linear;
+}
+
+#TabsToolbar:not([collapsed="true"]) + #nav-bar {
+  border-top: 1px solid hsla(0,0%,0%,.3) !important;
+  background-clip: padding-box;
+  /* Move up into the TabsToolbar for the inner highlight at the top of the nav-bar */
+  margin-top: calc(-1 * var(--navbar-tab-toolbar-highlight-overlap));
+  /* Position the toolbar above the bottom of background tabs */
+  position: relative;
+  z-index: 1;
+}
+
+#nav-bar {
+  box-shadow: 0 1px 0 @navbarInsetHighlight@ inset;
+  padding-top: 2px;
+  padding-bottom: 2px;
+}
+
+#nav-bar-overflow-button {
+  -moz-image-region: rect(-5px, 12px, 11px, -4px);
+}
+
+/* This only has an effect when this element is placed on the bookmarks toolbar.
+ * It's 30px to make sure buttons with 18px icons fit along with the default 16px
+ * icons, without changing the size of the toolbar.
+ */
+#personal-bookmarks {
+  min-height: 30px;
+}
+
+#browser-bottombox {
+  /* opaque for layers optimization */
+  background-color: -moz-Dialog;
+}
+
+/* Places toolbar */
+toolbarbutton.bookmark-item:not(.subviewbutton),
+#personal-bookmarks[cui-areatype="toolbar"]:not([overflowedItem=true]) > #bookmarks-toolbar-placeholder {
+  margin: 0;
+  padding: 2px 3px;
+}
+
+toolbarbutton.bookmark-item:not(.subviewbutton):not(:hover):not(:active):not([open]) {
+  color: inherit;
+}
+
+toolbarbutton.bookmark-item:not(.subviewbutton) {
+  -moz-appearance: none;
+  border: 1px solid transparent;
+  border-radius: 2px;
+  transition-property: background-color, border-color;
+  transition-duration: 150ms;
+}
+
+toolbarbutton.bookmark-item:not(.subviewbutton):hover:not([open]) {
+  background: var(--toolbarbutton-hover-background);
+  border-color: var(--toolbarbutton-hover-bordercolor);
+}
+
+toolbarbutton.bookmark-item:not(.subviewbutton):hover:active,
+toolbarbutton.bookmark-item[open="true"] {
+  background: var(--toolbarbutton-active-background);
+  box-shadow: var(--toolbarbutton-active-boxshadow);
+  border-color: var(--toolbarbutton-active-bordercolor);
+}
+
+toolbarbutton.bookmark-item:not(.subviewbutton):hover:-moz-lwtheme {
+  background: var(--toolbarbutton-hover-background);
+  border-color: var(--toolbarbutton-hover-bordercolor);
+}
+
+.bookmark-item > .toolbarbutton-icon,
+#personal-bookmarks[cui-areatype="toolbar"] > #bookmarks-toolbar-placeholder > .toolbarbutton-icon {
+  width: 16px;
+  height: 16px;
+}
+
+/* Force the display of the label for bookmarks */
+.bookmark-item > .toolbarbutton-text,
+#personal-bookmarks[cui-areatype="toolbar"] > #bookmarks-toolbar-placeholder > .toolbarbutton-text {
+  display: -moz-box !important;
+}
+
+.bookmark-item > .toolbarbutton-menu-dropmarker {
+  display: none;
+}
+
+/* Dropmarker for folder bookmarks */
+.bookmark-item[container] > .toolbarbutton-menu-dropmarker {
+  display: -moz-box !important;
+}
+
+#bookmarks-toolbar-placeholder {
+  list-style-image: url("chrome://browser/skin/places/bookmarksToolbar.png") !important;
+}
+
+toolbarpaletteitem[place="palette"] > #personal-bookmarks > #bookmarks-toolbar-placeholder,
+#personal-bookmarks[cui-areatype="menu-panel"] > #bookmarks-toolbar-placeholder {
+  list-style-image: url("chrome://browser/skin/places/bookmarksToolbar-menuPanel.png") !important;
+}
+
+/* ----- BOOKMARK STAR ANIMATION ----- */
+
+@keyframes animation-bookmarkAdded {
+  from { transform: rotate(0deg) translateX(-16px) rotate(0deg) scale(1); opacity: 0; }
+  60%  { transform: rotate(180deg) translateX(-16px) rotate(-180deg) scale(2.2); opacity: 1; }
+  80%  { opacity: 1; }
+  to   { transform: rotate(180deg) translateX(-16px) rotate(-180deg) scale(1); opacity: 0; }
+}
+
+@keyframes animation-bookmarkPulse {
+  from { transform: scale(1); }
+  50%  { transform: scale(1.3); }
+  to   { transform: scale(1); }
+}
+
+#bookmarked-notification-container {
+  min-height: 1px;
+  min-width: 1px;
+  height: 1px;
+  margin-bottom: -1px;
+  z-index: 5;
+  position: relative;
+}
+
+#bookmarked-notification {
+  background-size: 16px;
+  background-position: center;
+  background-repeat: no-repeat;
+  width: 16px;
+  height: 16px;
+  opacity: 0;
+}
+
+#bookmarked-notification-dropmarker-anchor {
+  z-index: -1;
+  position: relative;
+}
+
+#bookmarked-notification-dropmarker-icon {
+  width: 18px;
+  height: 18px;
+  visibility: hidden;
+}
+
+#bookmarked-notification-anchor[notification="finish"] > #bookmarked-notification {
+  background-image: url("chrome://browser/skin/places/bookmarks-notification-finish.png");
+  animation: animation-bookmarkAdded 800ms;
+  animation-timing-function: ease, ease, ease;
+}
+
+#bookmarks-menu-button[notification="finish"] > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
+  list-style-image: none !important;
+}
+
+#bookmarked-notification-dropmarker-anchor[notification="finish"] > #bookmarked-notification-dropmarker-icon {
+  visibility: visible;
+  animation: animation-bookmarkPulse 300ms;
+  animation-delay: 600ms;
+  animation-timing-function: ease-out;
+}
+
+/* Bookmark menus */
+menu.bookmark-item,
+menuitem.bookmark-item {
+  min-width: 0;
+  max-width: 32em;
+}
+
+.bookmark-item:not(.subviewbutton) > .menu-iconic-left {
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+.bookmark-item > .menu-iconic-left > .menu-iconic-icon {
+  padding-inline-start: 0px;
+}
+
+/* Bookmark drag and drop styles */
+.bookmark-item[dragover-into="true"] {
+  background: Highlight !important;
+  color: HighlightText !important;
+}
+
+/* rules for menupopup drop indicators */
+.menupopup-drop-indicator-bar {
+  position: relative;
+  /* these two margins must together compensate the indicator's height */
+  margin-top: -1px;
+  margin-bottom: -1px;
+}
+
+.menupopup-drop-indicator {
+  list-style-image: none;
+  height: 2px;
+  margin-inline-end: -4em;
+  background-color: Highlight;
+}
+
+/* Bookmarks toolbar */
+#PlacesToolbarDropIndicator {
+  list-style-image: url(chrome://browser/skin/places/toolbarDropMarker.png);
+}
+
+/* Bookmark items */
+.bookmark-item {
+  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
+}
+
+.bookmark-item[container] {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+.bookmark-item[container][livemark] {
+  list-style-image: url("chrome://browser/skin/feeds/feedIcon16.png");
+}
+
+.bookmark-item[container][livemark] .bookmark-item {
+  list-style-image: url("chrome://browser/skin/places/livemark-item.png");
+  -moz-image-region: rect(0px, 16px, 16px, 0px);
+}
+
+.bookmark-item[container][livemark] .bookmark-item[visited] {
+  -moz-image-region: rect(0px, 32px, 16px, 16px);
+}
+
+.bookmark-item[container][query] {
+  list-style-image: url("chrome://browser/skin/places/query.png");
+}
+
+.bookmark-item[query][tagContainer] {
+  list-style-image: url("chrome://browser/skin/places/tag.png");
+}
+
+.bookmark-item[query][dayContainer] {
+  list-style-image: url("chrome://browser/skin/places/calendar.png");
+}
+
+.bookmark-item[query][hostContainer] {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+.bookmark-item[query][hostContainer][open] {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+.bookmark-item[cutting] > .toolbarbutton-icon,
+.bookmark-item[cutting] > .menu-iconic-left > .menu-iconic-icon {
+  opacity: 0.5;
+}
+
+.bookmark-item[cutting] > .toolbarbutton-text,
+.bookmark-item[cutting] > .menu-iconic-left > .menu-iconic-text {
+  opacity: 0.7;
+}
+
+/* Primary toolbar buttons */
+
+:-moz-any(toolbar, .widget-overflow-list) .toolbarbutton-1 > .toolbarbutton-icon,
+:-moz-any(toolbar, .widget-overflow-list) .toolbarbutton-1 > :-moz-any(.toolbarbutton-menubutton-button, .toolbarbutton-badge-stack) > .toolbarbutton-icon {
+  max-width: 16px;
+}
+
+:-moz-any(toolbar, .widget-overflow-list) .toolbarbutton-1:-moz-any(@primaryToolbarButtons@, .toolbarbutton-legacy-addon) > .toolbarbutton-icon,
+:-moz-any(toolbar, .widget-overflow-list) .toolbarbutton-1:-moz-any(@primaryToolbarButtons@, .toolbarbutton-legacy-addon) > :-moz-any(.toolbarbutton-menubutton-button, .toolbarbutton-badge-stack) > .toolbarbutton-icon,
+#bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
+  max-width: 18px;
+}
+
+.findbar-button,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 {
+  -moz-appearance: none;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1[open="true"],
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:hover:active {
+  padding: 3px;
+}
+
+.findbar-button > .toolbarbutton-text,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-badge-stack,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-icon {
+  margin-inline-end: 0;
+  padding: 2px 6px;
+  border: 1px solid transparent;
+  border-radius: 2px;
+  transition-property: background-color, border-color;
+  transition-duration: 150ms;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not(:-moz-any(@primaryToolbarButtons@, .toolbarbutton-legacy-addon)) > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not(:-moz-any(@primaryToolbarButtons@, .toolbarbutton-legacy-addon)) > .toolbarbutton-badge-stack,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not(:-moz-any(@primaryToolbarButtons@, .toolbarbutton-legacy-addon)) > .toolbarbutton-menubutton-button > .toolbarbutton-icon {
+  padding: 3px 7px;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) #bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
+  /* horizontal padding + border + actual icon width */
+  max-width: 32px !important /* bug 561154 */;
+}
+
+#nav-bar #PanelUI-menu-button {
+  padding-inline-start: 5px;
+  padding-inline-end: 5px;
+}
+
+.findbar-button:not(:-moz-any([checked="true"],[disabled="true"])):hover > .toolbarbutton-text,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1[open]:not([disabled=true]) > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):not([open]):hover > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):not([open]):hover > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):hover > .toolbarbutton-badge-stack,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):hover > .toolbarbutton-icon {
+  background: var(--toolbarbutton-hover-background);
+  background-clip: padding-box;
+  border-color: var(--toolbarbutton-hover-bordercolor);
+  box-shadow: var(--toolbarbutton-hover-boxshadow);
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:hover > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1[open] > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
+  margin-top: 4px;
+  margin-bottom: 4px;
+}
+
+.findbar-button:not([disabled=true]):-moz-any([checked="true"],:hover:active) > .toolbarbutton-text,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button:not([disabled=true]):-moz-any(:hover:active, [open="true"]) > .toolbarbutton-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1[open="true"] > .toolbarbutton-menubutton-dropmarker:not([disabled=true]) > .dropmarker-icon,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):-moz-any([open],[checked],:hover:active) > .toolbarbutton-badge-stack,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not([disabled=true]):-moz-any([open],[checked],:hover:active) > .toolbarbutton-icon {
+  background: var(--toolbarbutton-active-background);
+  background-clip: padding-box;
+  box-shadow: var(--toolbarbutton-active-boxshadow);
+  border-color: var(--toolbarbutton-active-bordercolor);
+  transition-duration: 10ms;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1[checked]:not(:active):hover > .toolbarbutton-icon {
+  background-color: var(--toolbarbutton-checkedhover-backgroundcolor);
+  transition: background-color 150ms;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button[open],
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-button:hover:active,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:hover:active {
+  padding: 3px;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbaritem-combined-buttons {
+  margin-left: 2px;
+  margin-right: 2px;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbaritem-combined-buttons > .toolbarbutton-1 {
+  padding-left: 0;
+  padding-right: 0;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbaritem-combined-buttons:not(:hover) > separator,
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1:not(:hover):not(:active):not([open]) > .toolbarbutton-menubutton-dropmarker::before {
+  content: "";
+  display: -moz-box;
+  width: 1px;
+  height: 18px;
+  margin-inline-end: -1px;
+  background-image: linear-gradient(currentColor 0, currentColor 100%);
+  background-position: center;
+  background-repeat: no-repeat;
+  background-size: 1px 18px;
+  opacity: .2;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar)[brighttext] .toolbaritem-combined-buttons > separator,
+:-moz-any(#TabsToolbar, #nav-bar)[brighttext] .toolbarbutton-1:not(:hover):not(:active):not([open]) > .toolbarbutton-menubutton-dropmarker::before {
+  opacity: .3;
+}
+
+:-moz-any(#TabsToolbar, #nav-bar) .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker {
+  margin-inline-start: -4px;
+  margin-top: 3px;
+  margin-bottom: 3px;
+}
+
+:-moz-any(#back-button, #forward-button) > .toolbarbutton-icon {
+  border-color: var(--urlbar-border-color) !important /* bug 561154 */;
+}
+
+:-moz-any(#back-button, #forward-button):not(:hover):not(:active):not([open=true]) > .toolbarbutton-icon,
+:-moz-any(#back-button, #forward-button)[disabled=true] > .toolbarbutton-icon {
+  background-color: rgba(255,255,255,.25) !important /* bug 561154 */;
+  background-clip: padding-box;
+}
+
+#back-button {
+  padding-top: 2px;
+  padding-bottom: 2px;
+  padding-inline-start: 4px;
+  padding-inline-end: 0;
+  position: relative;
+  z-index: 1;
+  border-radius: 0 10000px 10000px 0;
+}
+
+#back-button:-moz-locale-dir(rtl) {
+  border-radius: 10000px 0 0 10000px;
+}
+
+#back-button > menupopup {
+  margin-top: -1px;
+}
+
+#back-button > .toolbarbutton-icon {
+  border-radius: 10000px;
+  padding: 6px;
+  max-width: 32px; /* horizontal padding + border + icon width */
+}
+
+#back-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
+  transform: scaleX(-1);
+}
+
+#forward-button {
+  -moz-box-align: stretch; /* let the button shape grow vertically with the location bar */
+  padding: 0;
+}
+
+#forward-button > .toolbarbutton-icon {
+  padding-left: calc(var(--backbutton-urlbar-overlap) + 3px);
+  padding-right: 3px;
+  border-left-style: none;
+  border-radius: 0;
+  max-width: calc(var(--forwardbutton-width) + var(--backbutton-urlbar-overlap));
+}
+
+@conditionalForwardWithUrlbar@:not([switchingtabs]) > #forward-button {
+  transition: margin-left @forwardTransitionLength@ ease-out;
+}
+
+@conditionalForwardWithUrlbar@ > #forward-button[disabled] {
+  margin-left: calc(0px - var(--forwardbutton-width) - var(--backbutton-urlbar-overlap));
+}
+
+@conditionalForwardWithUrlbar@:hover:not([switchingtabs]) > #forward-button[disabled] {
+  /* delay the hiding of the forward button when hovered to avoid accidental clicks on the url bar */
+  transition-delay: 100s;
+}
+
+@conditionalForwardWithUrlbar@:not(:hover) > #forward-button[disabled] {
+  /* when not hovered anymore, trigger a new transition to hide the forward button immediately */
+  margin-left: calc(-0.01px - var(--forwardbutton-width) - var(--backbutton-urlbar-overlap));
+}
+
+/* undo close tab menu item */
+#alltabs_undoCloseTab {
+  list-style-image: url(chrome://browser/skin/undoCloseTab.png);
+}
+
+.unified-nav-back[_moz-menuactive] {
+  list-style-image: url("moz-icon://stock/gtk-go-back-ltr?size=menu") !important;
+}
+.unified-nav-back[_moz-menuactive]:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-back-rtl?size=menu") !important;
+}
+.unified-nav-forward[_moz-menuactive] {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-ltr?size=menu") !important;
+}
+.unified-nav-forward[_moz-menuactive]:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-rtl?size=menu") !important;
+}
+
+/* Menu panel buttons */
+
+%include ../shared/toolbarbuttons.inc.css
+%include ../shared/menupanel.inc.css
+
+#main-window:not([customizing]) .toolbarbutton-1[disabled=true] > .toolbarbutton-icon,
+#main-window:not([customizing]) .toolbarbutton-1[disabled=true] > .toolbarbutton-menu-dropmarker,
+#main-window:not([customizing]) .toolbarbutton-1[disabled=true] > .toolbarbutton-menubutton-dropmarker,
+#main-window:not([customizing]) .toolbarbutton-1[disabled=true] > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+#main-window:not([customizing]) .toolbarbutton-1 > .toolbarbutton-menubutton-button[disabled=true] > .toolbarbutton-icon {
+  opacity: 0.4;
+}
+
+/* Fullscreen window controls */
+#window-controls {
+  -moz-box-align: start;
+  margin-inline-start: 10px;
+}
+
+#minimize-button {
+  list-style-image: url("chrome://global/skin/icons/Minimize.gif");
+}
+#restore-button {
+  list-style-image: url("chrome://global/skin/icons/Restore.gif");
+}
+#close-button {
+  list-style-image: url("chrome://global/skin/icons/Close.gif");
+}
+
+/* Location bar */
+#main-window {
+  --urlbar-border-color: ThreeDShadow;
+}
+
+#navigator-toolbox:-moz-lwtheme {
+  --urlbar-border-color: rgba(0,0,0,.3);
+}
+
+#urlbar,
+.searchbar-textbox {
+  -moz-appearance: none;
+  padding: 0;
+  border: 1px solid var(--urlbar-border-color);
+  border-radius: 2px;
+  background-clip: padding-box;
+  margin: 0 3px;
+}
+
+#urlbar[focused],
+.searchbar-textbox[focused] {
+  border-color: Highlight;
+}
+
+#urlbar {
+  background-color: -moz-field;
+}
+
+#urlbar:-moz-lwtheme,
+.searchbar-textbox:-moz-lwtheme {
+  background-color: rgba(255,255,255,.8);
+  color: black;
+}
+
+#urlbar:-moz-lwtheme[focused=true],
+.searchbar-textbox:-moz-lwtheme[focused=true] {
+  background-color: white;
+}
+
+.urlbar-textbox-container {
+  -moz-appearance: none;
+  -moz-box-align: stretch;
+}
+
+.urlbar-input-box {
+  margin-inline-start: 0;
+}
+
+.urlbar-input-box,
+#urlbar-display-box {
+  padding-inline-start: 4px;
+  border-inline-start: 1px solid var(--urlbar-separator-color);
+  border-image: linear-gradient(transparent 15%, var(--urlbar-separator-color) 15%, var(--urlbar-separator-color) 85%, transparent 85%);
+  border-image-slice: 1;
+}
+
+.urlbar-history-dropmarker {
+  -moz-appearance: toolbarbutton-dropdown;
+  transition: opacity 0.15s ease;
+}
+
+#urlbar-wrapper[switchingtabs] > #urlbar > .urlbar-textbox-container > .urlbar-history-dropmarker {
+  transition: none;
+}
+
+#navigator-toolbox:not(:hover) #nav-bar:not([customizing="true"]) #urlbar:not([focused]) > .urlbar-textbox-container > .urlbar-history-dropmarker {
+  opacity: 0;
+}
+
+#urlbar-container {
+  -moz-box-align: center;
+}
+
+@conditionalForwardWithUrlbar@ > #urlbar {
+  border-inline-start: none;
+  margin-left: 0;
+}
+
+@conditionalForwardWithUrlbar@ > #urlbar:-moz-locale-dir(ltr) {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: 0;
+}
+
+@conditionalForwardWithUrlbar@ > #urlbar:-moz-locale-dir(rtl) {
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
+@conditionalForwardWithUrlbar@ {
+  clip-path: url("chrome://browser/content/browser.xul#urlbar-back-button-clip-path");
+  margin-inline-start: calc(-1 * var(--backbutton-urlbar-overlap));
+}
+
+@conditionalForwardWithUrlbar@:-moz-locale-dir(rtl),
+@conditionalForwardWithUrlbar@ > #urlbar:-moz-locale-dir(rtl) {
+  /* let urlbar-back-button-clip-path clip the urlbar's right side for RTL */
+  transform: scaleX(-1);
+}
+
+@conditionalForwardWithUrlbar@:-moz-locale-dir(rtl) {
+  -moz-box-direction: reverse;
+}
+
+#urlbar-icons {
+  -moz-box-align: center;
+}
+
+.urlbar-icon {
+  padding: 0 3px;
+  /* 16x16 icon with border-box sizing */
+  width: 22px;
+  height: 16px;
+}
+
+/* ::::: URL Bar Zoom Reset Button ::::: */
+@keyframes urlbar-zoom-reset-pulse {
+  0% {
+    transform: scale(0);
+  }
+  75% {
+    transform: scale(1.5);
+  }
+  100% {
+    transform: scale(1.0);
+  }
+}
+
+#urlbar-zoom-button {
+  -moz-appearance: none;
+  margin: 0 3px;
+  font-size: .8em;
+  padding: 0 8px;
+  border-radius: 1em;
+  background-color: hsla(0,0%,0%,.05);
+  color: inherit;
+  border: 1px solid ThreeDLightShadow;
+}
+
+#urlbar-zoom-button[animate="true"] {
+  animation-name: urlbar-zoom-reset-pulse;
+  animation-duration: 250ms;
+}
+
+#urlbar-zoom-button:hover {
+  background-color: hsla(0,0%,0%,.1);
+}
+
+#urlbar-zoom-button:hover:active {
+  background-color: hsla(0,0%,0%,.15);
+}
+
+#urlbar-zoom-button > .toolbarbutton-text {
+  display: -moz-box;
+}
+
+#urlbar-zoom-button > .toolbarbutton-icon {
+  display: none;
+}
+
+#urlbar-search-footer {
+  border-top: 1px solid var(--panel-separator-color);
+  background-color: var(--arrowpanel-dimmed);
+}
+
+#urlbar-search-settings {
+  -moz-appearance: none;
+  -moz-user-focus: ignore;
+  color: GrayText;
+  margin: 0;
+  border: 0;
+  padding: 8px 20px;
+  background: transparent;
+}
+
+#urlbar-search-settings:hover {
+  background-color: var(--arrowpanel-dimmed);
+}
+
+#urlbar-search-settings:hover:active {
+  background-color: var(--arrowpanel-dimmed-further);
+}
+
+#urlbar-search-splitter {
+  -moz-appearance: none;
+  width: 8px;
+  margin-inline-start: -4px;
+}
+
+#urlbar-search-splitter + #search-container > #searchbar > .searchbar-textbox {
+  margin-inline-start: 0;
+}
+
+#urlbar-display-box {
+  margin-top: -1px;
+  margin-bottom: -1px;
+}
+
+.urlbar-display {
+  margin-top: 0;
+  margin-bottom: 0;
+  margin-inline-start: 0;
+  color: GrayText;
+}
+
+%include ../shared/urlbarSearchSuggestionsNotification.inc.css
+
+#search-container {
+  min-width: calc(54px + 11ch);
+}
+
+/* identity box */
+
+#identity-box:-moz-locale-dir(ltr) {
+  border-top-left-radius: 1.5px;
+  border-bottom-left-radius: 1.5px;
+}
+
+#identity-box:-moz-locale-dir(rtl) {
+  border-top-right-radius: 1.5px;
+  border-bottom-right-radius: 1.5px;
+}
+
+#identity-box:-moz-focusring {
+  outline: 1px dotted;
+  outline-offset: -3px;
+}
+
+%include ../shared/identity-block/identity-block.inc.css
+
+%include ../shared/notification-icons.inc.css
+
+.popup-notification-body[popupid="addon-progress"],
+.popup-notification-body[popupid="addon-install-confirmation"] {
+  width: 28em;
+  max-width: 28em;
+}
+
+.addon-install-confirmation-name {
+  font-weight: bold;
+}
+
+/* Notification icon box */
+
+.notification-anchor-icon:-moz-focusring {
+  outline: 1px dotted -moz-DialogText;
+}
+
+/* Translation infobar */
+
+%include ../shared/translation/infobar.inc.css
+
+notification[value="translation"] {
+  min-height: 40px;
+}
+
+notification[value="translation"],
+notification[value="translation"] button,
+notification[value="translation"] menulist {
+  min-height: 30px;
+  color: #5A5959;
+}
+
+notification[value="translation"] {
+  background-color: #F2F1F0;
+}
+
+notification[value="translation"] button,
+notification[value="translation"] menulist {
+  padding-inline-end: 1ch;
+}
+
+notification[value="translation"] menulist {
+  border: 1px solid #C1C1C1;
+  background-color: #FFF;
+}
+
+notification[value="translation"] button {
+  border: 1px solid #C1C1C1;
+  background-color: #F2F1F0;
+}
+
+notification[value="translation"] button,
+notification[value="translation"] menulist,
+notification[value="translation"] menulist > .menulist-label-box {
+  margin-inline-start: 1ch;
+  margin-inline-end: 1ch;
+}
+
+notification[value="translation"] button:hover,
+notification[value="translation"] button:active,
+notification[value="translation"] menulist:hover,
+notification[value="translation"] menulist:active {
+  background-color: #E2E1E0;
+}
+
+notification[value="translation"] button[anonid="translate"] {
+  color: #FFF;
+  background-image: linear-gradient(#9FB938, #8DA726);
+  box-shadow: none;
+  border: 1px solid #829C1C;
+}
+
+notification[value="translation"] button[anonid="translate"]:hover,
+notification[value="translation"] button[anonid="translate"]:active {
+  background-image: linear-gradient(#8DA726, #8DA726);
+}
+
+notification[value="translation"] button > .button-box,
+notification[value="translation"] button[type="menu"] > .button-box > .button-menu-dropmarker {
+  padding: 0;
+  margin-inline-start: 3ch;
+}
+
+notification[value="translation"] button:not([type="menu"]) > .button-box {
+  margin-inline-end: 3ch;
+}
+
+notification[value="translation"] menulist > .menulist-dropmarker {
+  display: block;
+}
+
+/* AutoComplete */
+
+%include ../shared/autocomplete.inc.css
+
+#PopupAutoComplete > richlistbox > richlistitem[originaltype~="datalist-first"] {
+  border-top: 1px solid ThreeDShadow;
+}
+
+#treecolAutoCompleteImage {
+  max-width : 36px;
+}
+
+.autocomplete-richlistbox {
+  padding: 4px;
+}
+
+.autocomplete-richlistitem {
+  height: 30px;
+  min-height: 30px;
+  font: message-box;
+  border-radius: 2px;
+  border: 1px solid transparent;
+}
+
+.autocomplete-richlistitem[selected=true] {
+  background-color: Highlight;
+}
+
+.ac-title {
+  font-size: 1.05em;
+}
+
+.ac-tags {
+  font-size: 0.9em;
+}
+
+html|span.ac-tag {
+  background-color: MenuText;
+  color: Menu;
+  border-radius: 2px;
+  border: 1px solid transparent;
+  padding: 0 1px;
+}
+
+.ac-separator,
+.ac-url,
+.ac-action {
+  font-size: 0.9em;
+  color: -moz-nativehyperlinktext;
+}
+
+.ac-title[selected=true],
+.ac-separator[selected],
+.ac-url[selected=true],
+.ac-action[selected=true] {
+  color: inherit !important;
+}
+
+.ac-tags-text[selected] > html|span.ac-tag {
+  background-color: HighlightText;
+  color: Highlight;
+}
+
+html|span.ac-emphasize-text-title,
+html|span.ac-emphasize-text-tag,
+html|span.ac-emphasize-text-url {
+  font-weight: 600;
+}
+
+.ac-type-icon[type=bookmark] {
+  list-style-image: url("chrome://browser/skin/urlbar-star.svg#star");
+}
+
+.ac-type-icon[type=bookmark][selected][current] {
+  list-style-image: url("chrome://browser/skin/urlbar-star.svg#star-inverted");
+}
+
+.autocomplete-treebody::-moz-tree-image(bookmark, treecolAutoCompleteImage) {
+  list-style-image: url("chrome://browser/skin/places/autocomplete-star.png");
+  width: 16px;
+  height: 16px;
+}
+
+.ac-type-icon[type=keyword],
+.ac-site-icon[type=searchengine],
+.autocomplete-treebody::-moz-tree-image(keyword, treecolAutoCompleteImage) {
+  list-style-image: url(chrome://global/skin/icons/autocomplete-search.svg#search-icon);
+}
+
+.ac-type-icon[type=keyword][selected],
+.ac-site-icon[type=searchengine][selected],
+.autocomplete-treebody::-moz-tree-image(keyword, treecolAutoCompleteImage, selected) {
+  list-style-image: url(chrome://global/skin/icons/autocomplete-search.svg#search-icon-inverted);
+}
+
+.autocomplete-treebody::-moz-tree-image(tag, treecolAutoCompleteImage) {
+  list-style-image: url("chrome://browser/skin/places/tag.png");
+  width: 16px;
+  height: 16px;
+}
+
+.ac-type-icon[type=switchtab],
+.ac-type-icon[type=remotetab] {
+  list-style-image: url("chrome://browser/skin/urlbar-tab.svg#tab");
+}
+
+.ac-type-icon[type=switchtab][selected],
+.ac-type-icon[type=remotetab][selected] {
+  list-style-image: url("chrome://browser/skin/urlbar-tab.svg#tab-inverted");
+}
+
+.autocomplete-treebody::-moz-tree-cell-text(treecolAutoCompleteComment) {
+  color: GrayText;
+}
+
+.autocomplete-treebody::-moz-tree-cell-text(suggesthint, treecolAutoCompleteComment),
+.autocomplete-treebody::-moz-tree-cell-text(suggestfirst, treecolAutoCompleteComment) {
+  color: GrayText;
+  font-size: smaller;
+}
+
+.autocomplete-treebody::-moz-tree-cell(suggesthint) {
+  border-top: 1px solid GrayText;
+}
+
+/* Combined go/reload/stop button in location bar */
+
+#urlbar-go-button,
+#urlbar-reload-button,
+#urlbar-stop-button {
+  -moz-appearance: none;
+  list-style-image: url("chrome://browser/skin/reload-stop-go.png");
+  padding: 0 9px;
+  margin-inline-start: 5px;
+  border-inline-start: 1px solid var(--urlbar-separator-color);
+  border-image: linear-gradient(transparent 15%,
+                                var(--urlbar-separator-color) 15%,
+                                var(--urlbar-separator-color) 85%,
+                                transparent 85%);
+  border-image-slice: 1;
+}
+
+#urlbar-reload-button {
+  -moz-image-region: rect(0, 14px, 14px, 0);
+}
+
+#urlbar-reload-button:not([disabled]):hover {
+  -moz-image-region: rect(14px, 14px, 28px, 0);
+}
+
+#urlbar-reload-button:not([disabled]):hover:active {
+  -moz-image-region: rect(28px, 14px, 42px, 0);
+}
+
+#urlbar-reload-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
+  transform: scaleX(-1);
+}
+
+#urlbar-go-button {
+  -moz-image-region: rect(0, 42px, 14px, 28px);
+}
+
+#urlbar-go-button:hover {
+  -moz-image-region: rect(14px, 42px, 28px, 28px);
+}
+
+#urlbar-go-button:hover:active {
+  -moz-image-region: rect(28px, 42px, 42px, 28px);
+}
+
+#urlbar-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
+  transform: scaleX(-1);
+}
+
+#urlbar-stop-button {
+  -moz-image-region: rect(0, 28px, 14px, 14px);
+}
+
+#urlbar-stop-button:not([disabled]):hover {
+  -moz-image-region: rect(14px, 28px, 28px, 14px);
+}
+
+#urlbar-stop-button:hover:active {
+  -moz-image-region: rect(28px, 28px, 42px, 14px);
+}
+
+@media (min-resolution: 1.1dppx) {
+  #urlbar-go-button,
+  #urlbar-reload-button,
+  #urlbar-stop-button {
+    list-style-image: url("chrome://browser/skin/reload-stop-go@2x.png");
+  }
+
+  #urlbar-go-button > .toolbarbutton-icon,
+  #urlbar-reload-button > .toolbarbutton-icon,
+  #urlbar-stop-button > .toolbarbutton-icon {
+    width: 14px;
+  }
+
+  #urlbar-go-button {
+    -moz-image-region: rect(0, 84px, 28px, 56px);
+  }
+
+  #urlbar-go-button:hover {
+    -moz-image-region: rect(28px, 84px, 56px, 56px);
+  }
+
+  #urlbar-go-button:hover:active {
+    -moz-image-region: rect(56px, 84px, 84px, 56px);
+  }
+
+  #urlbar-reload-button {
+    -moz-image-region: rect(0, 28px, 28px, 0);
+  }
+
+  #urlbar-reload-button:not([disabled]):hover {
+    -moz-image-region: rect(28px, 28px, 56px, 0);
+  }
+
+  #urlbar-reload-button:not([disabled]):hover:active {
+    -moz-image-region: rect(56px, 28px, 84px, 0);
+  }
+
+  #urlbar-stop-button {
+    -moz-image-region: rect(0, 56px, 28px, 28px);
+  }
+
+  #urlbar-stop-button:not([disabled]):hover {
+    -moz-image-region: rect(28px, 56px, 56px, 28px);
+  }
+
+  #urlbar-stop-button:hover:active {
+    -moz-image-region: rect(56px, 56px, 84px, 28px);
+  }
+}
+
+/* Popup blocker button */
+#page-report-button {
+  list-style-image: url("chrome://browser/skin/Info.png");
+}
+
+/* Reader mode button */
+
+#reader-mode-button {
+  list-style-image: url("chrome://browser/skin/readerMode.svg");
+  -moz-image-region: rect(0, 16px, 16px, 0);
+}
+
+#reader-mode-button:hover,
+#reader-mode-button[readeractive]:hover {
+  -moz-image-region: rect(0, 32px, 16px, 16px);
+}
+
+#reader-mode-button:hover:active,
+#reader-mode-button[readeractive] {
+  -moz-image-region: rect(0, 48px, 16px, 32px);
+}
+
+/* social share panel */
+%include ../shared/social/social.inc.css
+
+.social-share-frame {
+  border-top: 1px solid #f8f8f8;
+  width: 756px;
+  height: 150px;
+}
+
+#share-container {
+  min-width: 756px;
+  background-color: white;
+  background-repeat: no-repeat;
+  background-position: center center;
+}
+#share-container[loading] {
+  background-image: url(chrome://browser/skin/tabbrowser/pendingpaint.png);
+}
+#share-container > browser {
+  transition: opacity 150ms ease-in-out;
+  opacity: 1;
+}
+#share-container[loading] > browser {
+  opacity: 0;
+}
+
+.social-share-toolbar {
+  border-bottom: 1px solid #dedede;
+  padding: 2px;
+}
+
+#social-share-provider-buttons {
+  padding: 0;
+  margin: 0;
+}
+
+.share-provider-button {
+  padding: 5px;
+  margin: 2px;
+}
+
+.share-provider-button > .toolbarbutton-text {
+  display: none;
+}
+.share-provider-button > .toolbarbutton-icon {
+  width: 16px;
+  min-height: 16px;
+  max-height: 16px;
+}
+
+/* bookmarks menu-button */
+
+#bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker {
+  -moz-appearance: none !important;
+  -moz-box-align: center;
+}
+
+#bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
+  margin-top: 3px;
+  margin-bottom: 3px;
+}
+
+#bookmarks-menu-button[disabled][cui-areatype="toolbar"] > .toolbarbutton-icon,
+#bookmarks-menu-button[disabled][cui-areatype="toolbar"] > .toolbarbutton-menu-dropmarker,
+#bookmarks-menu-button[disabled][cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker,
+#bookmarks-menu-button[disabled][cui-areatype="toolbar"] > .toolbarbutton-menubutton-button > .toolbarbutton-icon,
+#bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-button[disabled] > .toolbarbutton-icon {
+  opacity: .4;
+}
+
+#BMB_bookmarksPopup[side="top"],
+#BMB_bookmarksPopup[side="bottom"] {
+  margin-left: -16px;
+  margin-right: -16px;
+}
+
+#BMB_bookmarksPopup[side="left"],
+#BMB_bookmarksPopup[side="right"] {
+  margin-top: -16px;
+  margin-bottom: -16px;
+}
+
+#nav-bar .toolbarbutton-1 > menupopup[side="top"].cui-widget-panel,
+#nav-bar .toolbarbutton-1 > menupopup[side="bottom"].cui-widget-panel {
+  margin-top: -4px;
+}
+
+/* Bookmarking panel */
+#editBookmarkPanelStarIcon {
+  list-style-image: url("chrome://browser/skin/places/starred48.png");
+  width: 48px;
+  height: 48px;
+}
+
+#editBookmarkPanelStarIcon[unstarred] {
+  list-style-image: url("chrome://browser/skin/places/unstarred48.png");
+}
+
+#editBookmarkPanelTitle {
+  font-size: 130%;
+}
+
+#editBookmarkPanelHeader,
+#editBookmarkPanelContent {
+  margin-bottom: .5em;
+}
+
+/* Implements editBookmarkPanel resizing on folderTree un-collapse. */
+#editBMPanel_folderTree {
+  min-width: 27em;
+}
+
+/* Content area */
+#sidebar {
+  background-color: Window;
+}
+
+#sidebar-header > .close-icon:not(:hover):-moz-lwtheme-brighttext {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 80, 16, 64);
+}
+
+.browserContainer > findbar {
+  background-color: -moz-dialog;
+  color: -moz-DialogText;
+  text-shadow: none;
+}
+
+/* Tabstrip */
+
+%include ../shared/tabs.inc.css
+
+#tabbrowser-tabs {
+  /* override the global style to allow the selected tab to be above the nav-bar */
+  z-index: auto;
+}
+
+#TabsToolbar {
+  min-height: 0;
+  padding: 0;
+  margin-bottom: calc(-1 * var(--tab-toolbar-navbar-overlap));
+}
+
+#TabsToolbar:not(:-moz-lwtheme) {
+  -moz-appearance: menubar;
+  color: -moz-menubartext;
+}
+
+#toolbar-menubar:not([autohide="true"]):not(:-moz-lwtheme):-moz-system-metric(menubar-drag),
+#TabsToolbar:not(:-moz-lwtheme):-moz-system-metric(menubar-drag) {
+  -moz-binding: url("chrome://browser/content/customizableui/toolbar.xml#toolbar-drag");
+}
+
+.tabbrowser-tab:focus > .tab-stack > .tab-content {
+  outline: 1px dotted;
+  outline-offset: -6px;
+}
+
+#context_reloadTab {
+  list-style-image: url("moz-icon://stock/gtk-refresh?size=menu");
+}
+
+#context_closeOtherTabs {
+  list-style-image: url("moz-icon://stock/gtk-clear?size=menu");
+}
+
+#context_closeOtherTabs[disabled] {
+  list-style-image: url("moz-icon://stock/gtk-clear?size=menu&state=disabled");
+}
+
+#context_undoCloseTab {
+  list-style-image: url("moz-icon://stock/gtk-undelete?size=menu");
+}
+
+#context_closeTab {
+  list-style-image: url("moz-icon://stock/gtk-close?size=menu");
+}
+
+/* Tab drag and drop */
+.tab-drop-indicator {
+  list-style-image: url(chrome://browser/skin/tabbrowser/tabDragIndicator.png);
+  margin-bottom: -9px;
+  z-index: 3;
+}
+
+/* Tab close button */
+.tab-close-button:not([selected]):not(:hover) {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 64, 16, 48);
+}
+
+.tab-close-button:not(:hover):-moz-lwtheme-brighttext,
+#TabsToolbar[brighttext] .tab-close-button:not([selected]):not(:hover) {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 80, 16, 64);
+}
+
+.tab-close-button:not(:hover):-moz-lwtheme-darktext {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 96, 16, 80);
+}
+
+/* Tabstrip new tab button */
+.tabs-newtab-button,
+#TabsToolbar > #new-tab-button ,
+#TabsToolbar > toolbarpaletteitem > #new-tab-button {
+  list-style-image: url(chrome://browser/skin/tabbrowser/newtab.svg);
+  -moz-image-region: auto;
+}
+
+#TabsToolbar[brighttext] .tabs-newtab-button,
+#TabsToolbar[brighttext] > #new-tab-button,
+#TabsToolbar[brighttext] > toolbarpaletteitem > #new-tab-button {
+  list-style-image: url(chrome://browser/skin/tabbrowser/newtab-inverted.svg);
+}
+
+/* Tabbrowser arrowscrollbox arrows */
+.tabbrowser-arrowscrollbox > .scrollbutton-up > .toolbarbutton-icon,
+.tabbrowser-arrowscrollbox > .scrollbutton-down > .toolbarbutton-icon {
+  -moz-appearance: none;
+}
+
+.tabbrowser-arrowscrollbox > .scrollbutton-up,
+.tabbrowser-arrowscrollbox > .scrollbutton-down {
+  -moz-appearance: none;
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-arrow-left.png");
+  margin: 0 0 var(--tab-toolbar-navbar-overlap);
+}
+
+#TabsToolbar[brighttext] > #tabbrowser-tabs > .tabbrowser-arrowscrollbox > .scrollbutton-up,
+#TabsToolbar[brighttext] > #tabbrowser-tabs > .tabbrowser-arrowscrollbox > .scrollbutton-down {
+  list-style-image: url(chrome://browser/skin/tabbrowser/tab-arrow-left-inverted.png);
+}
+
+.tabbrowser-arrowscrollbox > .scrollbutton-up[disabled],
+.tabbrowser-arrowscrollbox > .scrollbutton-down[disabled] {
+  opacity: .4;
+}
+
+.tabbrowser-arrowscrollbox > .scrollbutton-up:-moz-locale-dir(rtl),
+.tabbrowser-arrowscrollbox > .scrollbutton-down:-moz-locale-dir(ltr) {
+  transform: scaleX(-1);
+}
+
+.tabbrowser-arrowscrollbox > .scrollbutton-down {
+  transition: 1s background-color ease-out;
+}
+
+.tabbrowser-arrowscrollbox > .scrollbutton-down[notifybgtab] {
+  background-color: Highlight;
+  transition: none;
+}
+
+#TabsToolbar .toolbarbutton-1 {
+  margin-bottom: var(--tab-toolbar-navbar-overlap);
+}
+
+#alltabs-button {
+  list-style-image: url("chrome://browser/skin/tabbrowser/alltabs.png");
+}
+
+#TabsToolbar[brighttext] > #alltabs-button,
+#TabsToolbar[brighttext] > toolbarpaletteitem > #alltabs-button {
+  list-style-image: url("chrome://browser/skin/tabbrowser/alltabs-inverted.png");
+}
+
+#alltabs-button > .toolbarbutton-icon {
+  padding: 9px 6px 6px;
+}
+
+#alltabs-button > .toolbarbutton-menu-dropmarker {
+  display: none;
+}
+
+/* All tabs menupopup */
+.alltabs-item > .menu-iconic-left > .menu-iconic-icon {
+  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
+}
+
+.alltabs-item[selected="true"] {
+  font-weight: bold;
+}
+
+.alltabs-item[busy] > .menu-iconic-left > .menu-iconic-icon {
+  list-style-image: url("chrome://global/skin/icons/loading.png");
+}
+
+/* Sidebar */
+#sidebar-throbber[loading="true"] {
+  list-style-image: url("chrome://global/skin/icons/loading.png");
+  margin-inline-end: 4px;
+}
+
+toolbarbutton.chevron {
+  list-style-image: url("chrome://global/skin/toolbar/chevron.gif") !important;
+}
+
+toolbar[brighttext] toolbarbutton.chevron {
+  list-style-image: url("chrome://global/skin/toolbar/chevron-inverted.png") !important;
+}
+
+toolbarbutton.chevron:-moz-locale-dir(rtl) > .toolbarbutton-icon {
+  transform: scaleX(-1);
+}
+
+toolbarbutton.chevron > .toolbarbutton-text,
+toolbarbutton.chevron > .toolbarbutton-menu-dropmarker {
+  display: none;
+}
+
+toolbarbutton.chevron > .toolbarbutton-icon {
+  margin: 0;
+}
+
+/* Status panel */
+
+.statuspanel-label {
+  margin: 0;
+  padding: 2px 4px;
+  background: -moz-dialog;
+  border: 1px none ThreeDShadow;
+  border-top-style: solid;
+  color: -moz-dialogText;
+  text-shadow: none;
+}
+
+.statuspanel-label:-moz-locale-dir(ltr):not([mirror]),
+.statuspanel-label:-moz-locale-dir(rtl)[mirror] {
+  border-right-style: solid;
+  border-top-right-radius: .3em;
+  margin-right: 1em;
+}
+
+.statuspanel-label:-moz-locale-dir(rtl):not([mirror]),
+.statuspanel-label:-moz-locale-dir(ltr)[mirror] {
+  border-left-style: solid;
+  border-top-left-radius: .3em;
+  margin-left: 1em;
+}
+
+%include ../shared/fullscreen/warning.inc.css
+%include ../shared/ctrlTab.inc.css
+%include ../../../devtools/client/themes/responsivedesign.inc.css
+%include ../../../devtools/client/themes/commandline.inc.css
+%include ../shared/plugin-doorhanger.inc.css
+
+notification.pluginVulnerable > .notification-inner > .messageCloseButton:not(:hover) {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 80, 16, 64);
+}
+
+
+%include downloads/indicator.css
+
+.gcli-panel {
+  padding: 0;
+}
+
+.gclitoolbar-input-node > .textbox-input-box > html|*.textbox-input::-moz-selection {
+  color: hsl(210,11%,16%);
+}
+
+/* Error counter */
+
+#developer-toolbar-toolbox-button[error-count]:before {
+  color: #FDF3DE;
+  min-width: 16px;
+  text-shadow: none;
+  background-image: linear-gradient(#B4211B, #8A1915);
+  border-radius: 1px;
+  margin-inline-end: 2px;
+}
+
+/* Customization mode */
+
+%include ../shared/customizableui/customizeMode.inc.css
+
+#main-window[customize-entered] > #tab-view-deck {
+  background-image: url("chrome://browser/skin/customizableui/customizeMode-gridTexture.png"),
+                    linear-gradient(to bottom, #bcbcbc, #b5b5b5);
+  background-attachment: fixed;
+}
+
+#main-window[customization-lwtheme] > #tab-view-deck:-moz-lwtheme {
+  background-repeat: no-repeat;
+  background-position: right top;
+  background-attachment: fixed;
+  /* The image will get set from CustomizeMode.jsm */
+  background-image: none;
+  background-color: transparent;
+}
+
+#main-window[customization-lwtheme]:-moz-lwtheme {
+  background-image: url("chrome://browser/skin/customizableui/customizeMode-gridTexture.png"),
+                    url("chrome://browser/skin/customizableui/background-noise-toolbar.png"),
+                    linear-gradient(to bottom, #bcbcbc, #b5b5b5);
+  background-color: #b5b5b5;
+  background-repeat: repeat;
+  background-attachment: fixed;
+  background-position: left top;
+}
+
+#main-window[customize-entered] #browser-bottombox,
+#main-window[customize-entered] #navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar),
+#main-window[customize-entered] #customization-container {
+  border: 3px solid hsla(0,0%,0%,.1);
+  border-top-width: 0;
+  background-clip: padding-box;
+  background-origin: padding-box;
+  -moz-border-right-colors: hsla(0,0%,0%,.05) hsla(0,0%,0%,.1) hsla(0,0%,0%,.2);
+  -moz-border-bottom-colors: hsla(0,0%,0%,.05) hsla(0,0%,0%,.1) hsla(0,0%,0%,.2);
+  -moz-border-left-colors: hsla(0,0%,0%,.05) hsla(0,0%,0%,.1) hsla(0,0%,0%,.2);
+}
+
+#main-window[customize-entered] #customization-container,
+#main-window[customize-entered] #navigator-toolbox > toolbar:not(#toolbar-menubar):not(#TabsToolbar) {
+  border-bottom-width: 0;
+}
+
+#main-window[customize-entered] #TabsToolbar {
+  -moz-appearance: none;
+  background-clip: padding-box;
+  border-right: 3px solid transparent;
+  border-left: 3px solid transparent;
+}
+
+/* The :hover:active style from toolkit doesn't seem to work in this panel so just use :active. */
+.customization-tipPanel-closeBox > .close-icon:active {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 48, 16, 32);
+}
+
+/* End customization mode */
+
+
+#main-window[privatebrowsingmode=temporary] #private-browsing-indicator {
+  background: url("chrome://browser/skin/privatebrowsing-mask.png") center no-repeat;
+  width: 40px;
+}
+
+%include ../shared/UITour.inc.css
+
+#UITourHighlight {
+  /* Below are some fixes for people without an X compositor on Linux.
+     This is why we can't have nice things: */
+  /* Animations don't repaint properly without an X compositor. */
+  animation-name: none !important;
+  /* Opacity rounds to 0 or 1 on Linux without an X compositor so make the
+     background be transparent in that case by having all alpha values < 0.5 */
+  background-image: radial-gradient(50% 100%, rgba(0,149,220,0.3) 50%, rgba(0,149,220,0.49) 100%);
+  /* The highlight isn't anti-aliased without an X compositor so make it thicker.
+     Make it a darker color since we don't have the box-shadow in this case. */
+  border: 4px solid rgb(0,149,220);
+}
+
+#UITourTooltipDescription {
+  font-size: 1.05rem;
+}
+
+#UITourTooltipClose {
+  margin-inline-end: -4px;
+  height: 16px;
+  width: 16px;
+}
+
+/**
+ * Override the --arrowpanel-padding so the background extends
+ * to the sides and bottom of the panel.
+ */
+#UITourTooltipButtons {
+  margin-left: -10px;
+  margin-bottom: -10px;
+}
+
+%include ../shared/contextmenu.inc.css
+
+#context-navigation > .menuitem-iconic > .menu-iconic-left {
+  /* override toolkit/themes/linux/global/menu.css */
+  padding-inline-end: 0 !important;
+  margin-inline-end: 0 !important;
+}
+
+.browser-extension-panel > .panel-arrowcontainer > .panel-arrowcontent {
+  padding: 0;
+  overflow: hidden;
+}
+
+.webextension-popup-browser {
+  border-radius: inherit;
+}
diff --git a/browser/themes/linux/click-to-play-warning-stripes.png b/browser/themes/linux/click-to-play-warning-stripes.png
new file mode 100644
index 000000000..29f15f7b8
--- /dev/null
+++ b/browser/themes/linux/click-to-play-warning-stripes.png
diff --git a/browser/themes/linux/communicator/communicator.css b/browser/themes/linux/communicator/communicator.css
new file mode 100644
index 000000000..0b57574fd
--- /dev/null
+++ b/browser/themes/linux/communicator/communicator.css
@@ -0,0 +1,6 @@
+/* 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/. */
+
+@import url("chrome://global/skin/");
+
diff --git a/browser/themes/linux/communicator/jar.mn b/browser/themes/linux/communicator/jar.mn
new file mode 100644
index 000000000..dfd20c523
--- /dev/null
+++ b/browser/themes/linux/communicator/jar.mn
@@ -0,0 +1,7 @@
+# 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/.
+
+browser.jar:
+% skin communicator classic/1.0 %skin/classic/communicator/
+        skin/classic/communicator/communicator.css
diff --git a/browser/themes/linux/communicator/moz.build b/browser/themes/linux/communicator/moz.build
new file mode 100644
index 000000000..eb4454d28
--- /dev/null
+++ b/browser/themes/linux/communicator/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+JAR_MANIFESTS += ['jar.mn']
\ No newline at end of file
diff --git a/browser/themes/linux/controlcenter/panel.css b/browser/themes/linux/controlcenter/panel.css
new file mode 100644
index 000000000..fab9aa3a4
--- /dev/null
+++ b/browser/themes/linux/controlcenter/panel.css
@@ -0,0 +1,13 @@
+/* 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/. */
+
+%include ../../shared/controlcenter/panel.inc.css
+
+.identity-popup-expander:-moz-focusring {
+  padding: 1px;
+}
+
+.identity-popup-expander:-moz-focusring > .button-box {
+  outline: 1px -moz-dialogtext dotted;
+}
diff --git a/browser/themes/linux/customizableui/background-noise-toolbar.png b/browser/themes/linux/customizableui/background-noise-toolbar.png
new file mode 100644
index 000000000..d09ba9daf
--- /dev/null
+++ b/browser/themes/linux/customizableui/background-noise-toolbar.png
diff --git a/browser/themes/linux/customizableui/customizeMode-gridTexture.png b/browser/themes/linux/customizableui/customizeMode-gridTexture.png
new file mode 100644
index 000000000..a7c2775cf
--- /dev/null
+++ b/browser/themes/linux/customizableui/customizeMode-gridTexture.png
diff --git a/browser/themes/linux/customizableui/customizeMode-separatorHorizontal.png b/browser/themes/linux/customizableui/customizeMode-separatorHorizontal.png
new file mode 100644
index 000000000..5e17cb4db
--- /dev/null
+++ b/browser/themes/linux/customizableui/customizeMode-separatorHorizontal.png
diff --git a/browser/themes/linux/customizableui/customizeMode-separatorVertical.png b/browser/themes/linux/customizableui/customizeMode-separatorVertical.png
new file mode 100644
index 000000000..dc4caee81
--- /dev/null
+++ b/browser/themes/linux/customizableui/customizeMode-separatorVertical.png
diff --git a/browser/themes/linux/customizableui/panelUI.css b/browser/themes/linux/customizableui/panelUI.css
new file mode 100644
index 000000000..289faa085
--- /dev/null
+++ b/browser/themes/linux/customizableui/panelUI.css
@@ -0,0 +1,98 @@
+/* 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/. */
+
+%include ../../shared/customizableui/panelUI.inc.css
+
+.panel-subviews {
+  background-color: var(--arrowpanel-background);
+}
+
+#BMB_bookmarksPopup > menuitem[type="checkbox"] {
+  -moz-appearance: none !important; /* important, to override toolkit rule */
+}
+
+#BMB_bookmarksPopup menupopup {
+  -moz-appearance: none;
+  background: var(--arrowpanel-background);
+  color: var(--arrowpanel-color);
+  border: 1px solid var(--arrowpanel-border-color);
+  margin-top: -6px;
+  padding-top: 1px;
+}
+
+/* Add some space at the top because there are no headers: */
+#BMB_bookmarksPopup menupopup > hbox > .popup-internal-box > .arrowscrollbox-scrollbox > .scrollbox-innerbox  {
+  padding-top: 4px;
+}
+
+.subviewbutton > .toolbarbutton-text {
+  padding-top: 3px;
+  padding-bottom: 3px;
+}
+
+.widget-overflow-list .toolbarbutton-1 > .toolbarbutton-menubutton-button {
+  -moz-appearance: none;
+  border: 0;
+  margin-inline-start: 3px;
+}
+
+.widget-overflow-list .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker {
+  margin-inline-start: 0;
+}
+
+.subviewbutton > .toolbarbutton-text {
+  padding-inline-start: 16px;
+}
+
+.subviewbutton:-moz-any([image],[targetURI],.cui-withicon, .restoreallitem, .bookmark-item) > .toolbarbutton-text {
+  padding-inline-start: 0;
+}
+
+/* subviewbutton entries for social sidebars have images that come from external
+/* sources, and are not guaranteed to be the size we want, so force the size on
+/* those icons. */
+toolbarbutton.social-provider-menuitem > .toolbarbutton-icon {
+  width: 16px;
+  height: 16px;
+}
+
+.subviewbutton:-moz-any([image],[targetURI],.cui-withicon, .restoreallitem, .bookmark-item)[checked="true"] > .toolbarbutton-icon {
+  visibility: hidden;
+}
+
+menuitem.subviewbutton {
+  -moz-appearance: none !important;
+}
+
+menu.subviewbutton > .menu-right {
+  -moz-appearance: none;
+  list-style-image: url(chrome://browser/skin/places/bookmarks-menu-arrow.png);
+  -moz-image-region: rect(0, 16px, 16px, 0);
+  width: 16px;
+  height: 16px;
+}
+
+menu[disabled="true"].subviewbutton > .menu-right {
+  -moz-image-region: rect(0, 32px, 16px, 16px);
+}
+
+menu.subviewbutton > .menu-right:-moz-locale-dir(rtl) {
+  transform: scaleX(-1);
+}
+
+.subviewbutton > .toolbarbutton-icon {
+  margin-inline-end: 5px !important;
+}
+
+.subviewbutton > .menu-right,
+.subviewbutton > .menu-iconic-left {
+  padding-top: 1px;
+  /* These need !important to override menu.css */
+  margin-top: 1px !important;
+  margin-bottom: 2px !important;
+}
+
+.subviewradio > .radio-label-box {
+  -moz-appearance: none;
+}
diff --git a/browser/themes/linux/devedition.css b/browser/themes/linux/devedition.css
new file mode 100644
index 000000000..1f16d5d63
--- /dev/null
+++ b/browser/themes/linux/devedition.css
@@ -0,0 +1,106 @@
+% 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/.
+
+%include ../shared/devedition.inc.css
+
+:root {
+  --forwardbutton-width: 29px;
+}
+
+:root[devtoolstheme="light"] {
+  --urlbar-dropmarker-url: url("chrome://browser/skin/devedition/urlbar-history-dropmarker.svg");
+  --urlbar-dropmarker-region: rect(0px, 11px, 14px, 0px);
+  --urlbar-dropmarker-hover-region: rect(0, 22px, 14px, 11px);
+  --urlbar-dropmarker-active-region: rect(0px, 33px, 14px, 22px);
+  --urlbar-dropmarker-2x-url: url("chrome://browser/skin/devedition/urlbar-history-dropmarker.svg");
+  --urlbar-dropmarker-2x-region: rect(0px, 11px, 14px, 0px);
+  --urlbar-dropmarker-hover-2x-region: rect(0, 22px, 14px, 11px);
+  --urlbar-dropmarker-active-2x-region: rect(0px, 33px, 14px, 22px);
+}
+
+:root[devtoolstheme="dark"] .findbar-closebutton:not(:hover),
+:root[devtoolstheme="dark"] #sidebar-header > .close-icon:not(:hover),
+.tab-close-button[selected]:not(:hover) {
+  background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 80, 16, 64);
+}
+
+/* The menubar and tabs toolbar should match the devedition theme */
+#TabsToolbar,
+#toolbar-menubar {
+  -moz-appearance: none !important;
+}
+#main-menubar {
+  color: var(--chrome-color);
+}
+#main-menubar > menu:not([open]) {
+  color: inherit;
+}
+
+/* Allow buttons with -moz-appearance set to look normal on hover and open states */
+#navigator-toolbox .toolbarbutton-1:-moz-any(:hover, [open="true"]),
+#PlacesToolbar toolbarbutton.bookmark-item:-moz-any(:hover, [open="true"]) {
+  color: initial;
+}
+
+/* Square back and forward buttons */
+#back-button > .toolbarbutton-icon,
+#forward-button > .toolbarbutton-icon {
+  margin: 0;
+  border: 1px solid var(--chrome-nav-bar-controls-border-color);
+  padding: 2px 5px;
+  background: var(--chrome-nav-buttons-background);
+  box-shadow: none !important;
+}
+
+#forward-button > .toolbarbutton-icon {
+  border-inline-start: none;
+}
+
+/* Override a box shadow for disabled back button */
+#main-window:not([customizing]) #back-button[disabled] > .toolbarbutton-icon {
+  box-shadow: none !important;
+}
+
+#back-button:hover:not([disabled="true"]) > .toolbarbutton-icon,
+#forward-button:hover:not([disabled="true"]) > .toolbarbutton-icon {
+  background: var(--chrome-nav-buttons-hover-background) !important;
+}
+
+#back-button > .toolbarbutton-icon {
+  border-radius: 2px 0 0 2px !important;
+}
+
+.urlbar-history-dropmarker {
+  -moz-appearance: none;
+  padding: 0 3px;
+  list-style-image: var(--urlbar-dropmarker-url);
+  -moz-image-region: var(--urlbar-dropmarker-region);
+}
+
+/* Add the proper background for tab overflow */
+#alltabs-button,
+#new-tab-button {
+  background: var(--chrome-background-color);
+}
+
+#new-tab-button:hover > .toolbarbutton-icon {
+  border-color: transparent !important;
+}
+
+/* Prevent double border below tabs toolbar */
+#TabsToolbar:not([collapsed="true"]) + #nav-bar {
+  border-top-width: 0 !important;
+}
+
+/* Fix the bad-looking text-shadow in the sidebar header: */
+.sidebar-header,
+#sidebar-header {
+  text-shadow: none;
+}
+
+.ac-type-icon {
+  /* Left-align the type icon in awesomebar popup results with the icon in the
+     urlbar. */
+  margin-inline-start: 11px;
+}
diff --git a/browser/themes/linux/downloads/allDownloadsViewOverlay.css b/browser/themes/linux/downloads/allDownloadsViewOverlay.css
new file mode 100644
index 000000000..f5a05c9b0
--- /dev/null
+++ b/browser/themes/linux/downloads/allDownloadsViewOverlay.css
@@ -0,0 +1,11 @@
+/* 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/. */
+
+%include ../../shared/downloads/allDownloadsViewOverlay.inc.css
+
+/*** List items ***/
+
+:root {
+  --downloads-item-height: 5em;
+}
diff --git a/browser/themes/linux/downloads/download-glow-menuPanel.png b/browser/themes/linux/downloads/download-glow-menuPanel.png
new file mode 100644
index 000000000..b8443f045
--- /dev/null
+++ b/browser/themes/linux/downloads/download-glow-menuPanel.png
diff --git a/browser/themes/linux/downloads/download-notification-finish.png b/browser/themes/linux/downloads/download-notification-finish.png
new file mode 100644
index 000000000..f5fa12053
--- /dev/null
+++ b/browser/themes/linux/downloads/download-notification-finish.png
diff --git a/browser/themes/linux/downloads/download-notification-start.png b/browser/themes/linux/downloads/download-notification-start.png
new file mode 100644
index 000000000..bd548b183
--- /dev/null
+++ b/browser/themes/linux/downloads/download-notification-start.png
diff --git a/browser/themes/linux/downloads/downloads.css b/browser/themes/linux/downloads/downloads.css
new file mode 100644
index 000000000..41ea68d43
--- /dev/null
+++ b/browser/themes/linux/downloads/downloads.css
@@ -0,0 +1,21 @@
+/* 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/. */
+
+%include ../../shared/downloads/downloads.inc.css
+
+/*** List items and similar elements in the summary ***/
+
+:root {
+  --downloads-item-height: 5.5em;
+  --downloads-item-font-size-factor: 0.9;
+  --downloads-item-details-opacity: 0.6;
+}
+
+@keyfocus@ @itemFocused@,
+@keyfocus@ #downloadsSummary:focus,
+@keyfocus@ .downloadsPanelFooterButton:focus,
+.downloadButton:focus {
+  outline: 1px -moz-dialogtext dotted;
+  outline-offset: -1px;
+}
diff --git a/browser/themes/linux/downloads/indicator.css b/browser/themes/linux/downloads/indicator.css
new file mode 100644
index 000000000..6e9d9ace5
--- /dev/null
+++ b/browser/themes/linux/downloads/indicator.css
@@ -0,0 +1,218 @@
+/* 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/. */
+
+/*** Status and progress indicator ***/
+
+#downloads-animation-container {
+  min-height: 1px;
+  min-width: 1px;
+  height: 1px;
+  margin-bottom: -1px;
+  /* Makes the outermost animation container element positioned, so that its
+     contents are rendered over the main browser window in the Z order.
+     This is required by the animated event notification. */
+  position: relative;
+  /* The selected tab may overlap #downloads-indicator-notification */
+  z-index: 5;
+}
+
+/*** Main indicator icon ***/
+
+@media not all and (min-resolution: 1.1dppx) {
+  #downloads-button {
+    --downloads-indicator-icon: -moz-image-rect(url("chrome://browser/skin/Toolbar.png"), 0, 198, 18, 180);
+    --downloads-indicator-icon-attention: -moz-image-rect(url("chrome://browser/skin/Toolbar.png"), 18, 198, 36, 180);
+    --downloads-indicator-icon-inverted: -moz-image-rect(url("chrome://browser/skin/Toolbar-inverted.png"), 0, 198, 18, 180);
+    --downloads-indicator-icon-attention-inverted: -moz-image-rect(url("chrome://browser/skin/Toolbar-inverted.png"), 18, 198, 36, 180);
+  }
+}
+
+@media (min-resolution: 1.1dppx) {
+  #downloads-button {
+    --downloads-indicator-icon: -moz-image-rect(url("chrome://browser/skin/Toolbar@2x.png"), 0, 396, 36, 360);
+    --downloads-indicator-icon-attention: -moz-image-rect(url("chrome://browser/skin/Toolbar@2x.png"), 36, 396, 72, 360);
+    --downloads-indicator-icon-inverted: -moz-image-rect(url("chrome://browser/skin/Toolbar-inverted@2x.png"), 0, 396, 36, 360);
+    --downloads-indicator-icon-attention-inverted: -moz-image-rect(url("chrome://browser/skin/Toolbar-inverted@2x.png"), 36, 396, 72, 360);
+  }
+}
+
+#downloads-button[cui-areatype="toolbar"] > #downloads-indicator-anchor > #downloads-indicator-icon {
+  background: var(--downloads-indicator-icon) center no-repeat;
+  width: 18px;
+  height: 18px;
+  background-size: 18px;
+}
+
+toolbar[brighttext] #downloads-button[cui-areatype="toolbar"]:not([attention="success"]) > #downloads-indicator-anchor > #downloads-indicator-icon {
+  background-image: var(--downloads-indicator-icon-inverted);
+}
+
+#downloads-button[attention="warning"] > .toolbarbutton-badge-stack > .toolbarbutton-badge,
+#downloads-button[attention="severe"] > .toolbarbutton-badge-stack > .toolbarbutton-badge {
+  display: -moz-box;
+  height: 8px;
+  width: 8px;
+  min-width: 0;
+  border-radius: 50%;
+  /* "!important" is necessary to override the rule in toolbarbutton.css */
+  margin-top: -1px !important;
+  margin-right: -2px !important;
+}
+
+#downloads-button[cui-areatype="toolbar"] > .toolbarbutton-badge-stack > .toolbarbutton-badge {
+  height: 7px;
+  width: 7px;
+}
+
+#downloads-button[attention="severe"] > .toolbarbutton-badge-stack > .toolbarbutton-badge {
+  background: #D90000;
+}
+
+#downloads-button[attention="warning"] > .toolbarbutton-badge-stack > .toolbarbutton-badge {
+  background: #FFBF00;
+}
+
+#downloads-button[cui-areatype="toolbar"][attention="severe"] > .toolbarbutton-badge-stack > .toolbarbutton-badge:-moz-window-inactive,
+#downloads-button[cui-areatype="toolbar"][attention="warning"] > .toolbarbutton-badge-stack > .toolbarbutton-badge:-moz-window-inactive {
+  filter: none;
+}
+
+#downloads-button[cui-areatype="toolbar"][attention="success"] > #downloads-indicator-anchor > #downloads-indicator-icon {
+  background-image: var(--downloads-indicator-icon-attention);
+}
+
+toolbar[brighttext] #downloads-button[cui-areatype="toolbar"][attention="success"] > #downloads-indicator-anchor > #downloads-indicator-icon {
+  background-image: var(--downloads-indicator-icon-attention-inverted);
+}
+
+#downloads-button[cui-areatype="menu-panel"][attention="success"] {
+  list-style-image: url("chrome://browser/skin/downloads/download-glow-menuPanel.png");
+  -moz-image-region: auto;
+}
+
+/* In the next few rules, we use :not([counter]) as a shortcut that is
+   equivalent to -moz-any([progress], [paused]). */
+
+#downloads-button:not([counter]) > #downloads-indicator-anchor > #downloads-indicator-progress-area > #downloads-indicator-counter {
+  background: var(--downloads-indicator-icon) center no-repeat;
+  background-size: 12px;
+}
+
+toolbar[brighttext] #downloads-button:not([counter]):not([attention="success"]) > #downloads-indicator-anchor > #downloads-button-progress-area > #downloads-indicator-counter {
+  background-image: var(--downloads-indicator-icon-inverted);
+}
+
+#downloads-button:not([counter])[attention="success"] > #downloads-indicator-anchor > #downloads-indicator-progress-area > #downloads-indicator-counter {
+  background-image: var(--downloads-indicator-icon-attention);
+}
+
+toolbar[brighttext] #downloads-button:not([counter])[attention="success"] > #downloads-indicator-anchor > #downloads-indicator-progress-area > #downloads-indicator-counter {
+  background-image: var(--downloads-indicator-icon-attention-inverted);
+}
+
+/*** Download notifications ***/
+
+#downloads-indicator-notification {
+  opacity: 0;
+  background-size: 16px;
+  background-position: center;
+  background-repeat: no-repeat;
+  width: 16px;
+  height: 16px;
+}
+
+@keyframes downloadsIndicatorNotificationStartRight {
+  from { opacity: 0; transform: translate(-128px, 128px) scale(8); }
+  20%  { opacity: .85; animation-timing-function: ease-out; }
+  to   { opacity: 0; transform: translate(0) scale(1); }
+}
+
+@keyframes downloadsIndicatorNotificationStartLeft {
+  from { opacity: 0; transform: translate(128px, 128px) scale(8); }
+  20%  { opacity: .85; animation-timing-function: ease-out; }
+  to   { opacity: 0; transform: translate(0) scale(1); }
+}
+
+#downloads-notification-anchor[notification="start"] > #downloads-indicator-notification {
+  background-image: url("chrome://browser/skin/downloads/download-notification-start.png");
+  animation-name: downloadsIndicatorNotificationStartRight;
+  animation-duration: 1s;
+}
+
+#downloads-notification-anchor[notification="start"]:-moz-locale-dir(rtl) > #downloads-indicator-notification {
+  animation-name: downloadsIndicatorNotificationStartLeft;
+}
+
+@keyframes downloadsIndicatorNotificationFinish {
+  from { opacity: 0; transform: scale(1); }
+  20%  { opacity: .65; animation-timing-function: ease-in; }
+  to   { opacity: 0; transform: scale(8); }
+}
+
+#downloads-notification-anchor[notification="finish"] > #downloads-indicator-notification {
+  background-image: url("chrome://browser/skin/downloads/download-notification-finish.png");
+  animation-name: downloadsIndicatorNotificationFinish;
+  animation-duration: 1s;
+}
+
+/*** Progress bar and text ***/
+
+#downloads-indicator-counter {
+  height: 10px;
+  margin: 0;
+  color: hsl(0,0%,30%);
+  text-shadow: 0 1px 0 hsla(0,0%,100%,.5);
+  font-size: 10px;
+  line-height: 10px;
+  text-align: center;
+}
+
+toolbar[brighttext] #downloads-indicator-counter {
+  color: white;
+  text-shadow: 0 0 1px rgba(0,0,0,.7),
+               0 1px 1.5px rgba(0,0,0,.5);
+}
+
+#downloads-indicator-progress {
+  width: 18px;
+  height: 6px;
+  min-width: 0;
+  min-height: 0;
+  margin-top: 1px;
+  margin-bottom: 2px;
+  border-radius: 2px;
+  box-shadow: 0 1px 0 hsla(0,0%,100%,.4);
+}
+
+#downloads-indicator-progress > .progress-bar {
+  -moz-appearance: none;
+  min-width: 0;
+  min-height: 0;
+  /* The background-clip: border-box; and background-image: none; are there to expand the background-color behind the border */
+  background-clip: padding-box, border-box;
+  background-color: rgb(255, 135, 94);
+  background-image: linear-gradient(transparent 1px, rgba(255, 255, 255, 0.4) 1px, rgba(255, 255, 255, 0.4) 2px, transparent 2px), none;
+  border: 1px solid;
+  border-color: rgba(0,43,86,.6) rgba(0,43,86,.4) rgba(0,43,86,.4);
+  border-radius: 2px 0 0 2px;
+}
+
+#downloads-indicator-progress > .progress-remainder {
+  -moz-appearance: none;
+  min-width: 0;
+  min-height: 0;
+  background-image: linear-gradient(#505050, #575757);
+  border: 1px solid;
+  border-color: hsla(0,0%,0%,.6) hsla(0,0%,0%,.4) hsla(0,0%,0%,.4);
+  border-inline-start: none;
+  border-radius: 0 2px 2px 0;
+}
+
+#downloads-button[paused] > #downloads-indicator-anchor > #downloads-indicator-progress-area > #downloads-indicator-progress > .progress-bar {
+  background-color: rgb(220, 230, 81);
+}
+
+#downloads-button[paused] > #downloads-indicator-anchor > #downloads-indicator-progress-area > #downloads-indicator-progress > .progress-remainder {
+  background-image: linear-gradient(#4b5000, #515700);
+}
diff --git a/browser/themes/linux/feeds/feedIcon.png b/browser/themes/linux/feeds/feedIcon.png
new file mode 100644
index 000000000..a788fffb0
--- /dev/null
+++ b/browser/themes/linux/feeds/feedIcon.png
diff --git a/browser/themes/linux/feeds/feedIcon16.png b/browser/themes/linux/feeds/feedIcon16.png
new file mode 100644
index 000000000..f8536a4e1
--- /dev/null
+++ b/browser/themes/linux/feeds/feedIcon16.png
diff --git a/browser/themes/linux/feeds/subscribe-ui.css b/browser/themes/linux/feeds/subscribe-ui.css
new file mode 100644
index 000000000..f1650036e
--- /dev/null
+++ b/browser/themes/linux/feeds/subscribe-ui.css
@@ -0,0 +1,7 @@
+/* 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/. */
+
+.alwaysUse {
+  padding: 5px;
+}
diff --git a/browser/themes/linux/feeds/subscribe.css b/browser/themes/linux/feeds/subscribe.css
new file mode 100644
index 000000000..a9b59d2e1
--- /dev/null
+++ b/browser/themes/linux/feeds/subscribe.css
@@ -0,0 +1,185 @@
+/* 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/. */
+
+html {
+  background: -moz-Dialog;
+  font: 3mm tahoma,arial,helvetica,sans-serif;
+}
+
+#subscribeUsingDescription,
+#subscribeButton {
+  display: block;
+}
+
+#subscribeUsingDescription {
+  margin-bottom: 0.5em;
+}
+
+#subscribeButton {
+  margin-top: 0.5em;
+  margin-inline-start: auto;
+}
+
+#feedBody {
+  border: 1px solid THreeDShadow;
+  padding: 3em;
+  padding-inline-start: 30px;
+  margin: 2em auto;
+  background: -moz-Field;
+}
+
+#feedHeaderContainer {
+  border: 1px solid ThreeDShadow;
+  border-radius: 10px;
+  margin: -4em auto 0 auto;
+  background-color: InfoBackground;
+  -moz-appearance: -moz-gtk-info-bar;
+  display: flex;
+}
+
+#feedHeaderContainerSpacer {
+  flex-grow: 1;
+}
+
+#feedHeader {
+  margin-top: 4.9em;
+  margin-bottom: 1em;
+  margin-inline-start: 1.4em;
+  margin-inline-end: 1em;
+  padding-inline-start: 2.9em;
+  font-size: 110%;
+  color: -moz-gtk-info-bar-text;
+}
+
+.feedBackground {
+  background: url("chrome://browser/skin/feeds/feedIcon.png") 0% 10% no-repeat;
+}
+
+.videoPodcastBackground {
+  background: url("chrome://browser/skin/feeds/videoFeedIcon.png") 0% 10% no-repeat;
+}
+
+.audioPodcastBackground {
+  background: url("chrome://browser/skin/feeds/audioFeedIcon.png") 0% 10% no-repeat;
+}
+
+#feedHeader[dir="rtl"] {
+  background-position: 100% 10%;
+}
+
+#feedIntroText {
+  display: none;
+}
+
+#feedHeader[firstrun="true"] #feedIntroText {
+  padding-top: 0.1em;
+  padding-inline-start: 0.6em;
+  display: block;
+}
+
+#feedHeader[firstrun="true"] > #feedSubscribeLine {
+  padding-inline-start: 1.8em;
+}
+
+#feedSubscribeLine {
+  padding-top: 0.2em;
+  padding-inline-start: 0.5em;
+}
+
+/* Don't print subscription UI */
+@media print {
+  #feedHeaderContainer {
+    display: none;
+  }
+}
+
+body {
+  margin: 0;
+  padding: 0 3em;
+  color: -moz-fieldText;
+  font: message-box;
+}
+
+h1 {
+  font-size: 160%;
+  border-bottom: 2px solid ThreeDLightShadow;
+  margin: 0 0 .2em 0;
+}
+
+h2 {
+  color: GrayText;
+  font-size: 110%;
+  font-weight: normal;
+  margin: 0 0 .6em 0;
+}
+
+#feedTitleLink {
+  float: right;
+  margin-inline-start: .6em;
+  margin-inline-end: 0;
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+a[href] img {
+  border: none;
+}
+
+#feedTitleContainer {
+  margin-inline-start: 0;
+  margin-inline-end: .6em;
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+#feedTitleImage {
+  margin-inline-start: .6em;
+  margin-inline-end: 0;
+  margin-top: 0;
+  margin-bottom: 0;
+  max-width: 300px;
+  max-height: 150px;
+}
+
+.feedEntryContent {
+  font-size: 110%;
+}
+ 
+.link {
+  color: #0000FF;
+  text-decoration: underline;
+  cursor: pointer;
+}
+
+.link:hover:active {
+  color: #FF0000;
+}
+
+.lastUpdated {
+  font-size: 85%;
+  font-weight: normal;
+}
+
+.type-icon {
+  vertical-align: bottom;
+  height: 16px;
+  width: 16px;
+}
+
+.enclosures {
+  border: 1px solid THreeDShadow;
+  padding: 1em;
+  margin: 1em auto;
+  background: -moz-Dialog;
+}
+
+.enclosure {
+  vertical-align: middle;
+  margin-left: 2px;
+}
+
+.handlersMenuList > .menulist-label-box > .menulist-icon {
+  max-width: 16px;
+  max-height: 16px;
+}
diff --git a/browser/themes/linux/jar.mn b/browser/themes/linux/jar.mn
new file mode 100644
index 000000000..e09029438
--- /dev/null
+++ b/browser/themes/linux/jar.mn
@@ -0,0 +1,140 @@
+# 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/.
+
+browser.jar:
+% skin browser classic/1.0 %skin/classic/browser/
+% override chrome://global/skin/icons/warning-16.png moz-icon://stock/gtk-dialog-warning?size=menu
+#include ../shared/jar.inc.mn
+  skin/classic/browser/sanitizeDialog.css
+  skin/classic/browser/aboutSessionRestore-window-icon.png
+  skin/classic/browser/aboutSyncTabs.css
+* skin/classic/browser/syncedtabs/sidebar.css     (syncedtabs/sidebar.css)
+  skin/classic/browser/actionicon-tab.png
+* skin/classic/browser/browser.css
+* skin/classic/browser/devedition.css
+* skin/classic/browser/browser-lightweightTheme.css
+  skin/classic/browser/click-to-play-warning-stripes.png
+  skin/classic/browser/Info.png
+  skin/classic/browser/menuPanel-customize.png
+  skin/classic/browser/menuPanel-customize@2x.png
+  skin/classic/browser/menuPanel-exit.png
+  skin/classic/browser/menuPanel-exit@2x.png
+  skin/classic/browser/menuPanel-help.png
+  skin/classic/browser/menuPanel-help@2x.png
+  skin/classic/browser/monitor.png
+  skin/classic/browser/monitor_16-10.png
+* skin/classic/browser/pageInfo.css
+  skin/classic/browser/pageInfo.png
+  skin/classic/browser/page-livemarks.png
+  skin/classic/browser/Privacy-16.png
+  skin/classic/browser/privatebrowsing-mask.png
+  skin/classic/browser/reload-stop-go.png
+  skin/classic/browser/reload-stop-go@2x.png
+  skin/classic/browser/searchbar.css
+  skin/classic/browser/Security-broken.png
+  skin/classic/browser/setDesktopBackground.css
+  skin/classic/browser/slowStartup-16.png
+  skin/classic/browser/Toolbar.png
+  skin/classic/browser/Toolbar@2x.png
+  skin/classic/browser/Toolbar-inverted.png
+  skin/classic/browser/Toolbar-inverted@2x.png
+  skin/classic/browser/Toolbar-small.png
+  skin/classic/browser/webRTC-indicator.css
+* skin/classic/browser/controlcenter/panel.css        (controlcenter/panel.css)
+  skin/classic/browser/customizableui/background-noise-toolbar.png  (customizableui/background-noise-toolbar.png)
+  skin/classic/browser/customizableui/customizeMode-gridTexture.png  (customizableui/customizeMode-gridTexture.png)
+  skin/classic/browser/customizableui/customizeMode-separatorHorizontal.png  (customizableui/customizeMode-separatorHorizontal.png)
+  skin/classic/browser/customizableui/customizeMode-separatorVertical.png  (customizableui/customizeMode-separatorVertical.png)
+* skin/classic/browser/customizableui/panelUI.css (customizableui/panelUI.css)
+* skin/classic/browser/downloads/allDownloadsViewOverlay.css   (downloads/allDownloadsViewOverlay.css)
+  skin/classic/browser/downloads/download-glow-menuPanel.png (downloads/download-glow-menuPanel.png)
+  skin/classic/browser/downloads/download-notification-finish.png (downloads/download-notification-finish.png)
+  skin/classic/browser/downloads/download-notification-start.png (downloads/download-notification-start.png)
+* skin/classic/browser/downloads/downloads.css        (downloads/downloads.css)
+  skin/classic/browser/feeds/feedIcon.png             (feeds/feedIcon.png)
+  skin/classic/browser/feeds/feedIcon16.png           (feeds/feedIcon16.png)
+  skin/classic/browser/feeds/subscribe.css            (feeds/subscribe.css)
+  skin/classic/browser/feeds/subscribe-ui.css         (feeds/subscribe-ui.css)
+* skin/classic/browser/newtab/newTab.css              (newtab/newTab.css)
+  skin/classic/browser/places/autocomplete-star.png   (places/autocomplete-star.png)
+  skin/classic/browser/places/bookmarksMenu.png       (places/bookmarksMenu.png)
+  skin/classic/browser/places/bookmarksToolbar.png    (places/bookmarksToolbar.png)
+  skin/classic/browser/places/bookmarksToolbar-menuPanel.png (places/bookmarksToolbar-menuPanel.png)
+  skin/classic/browser/places/bookmarks-notification-finish.png  (places/bookmarks-notification-finish.png)
+  skin/classic/browser/places/bookmarks-menu-arrow.png           (places/bookmarks-menu-arrow.png)
+  skin/classic/browser/places/calendar.png            (places/calendar.png)
+* skin/classic/browser/places/editBookmarkOverlay.css (places/editBookmarkOverlay.css)
+  skin/classic/browser/places/livemark-item.png       (places/livemark-item.png)
+  skin/classic/browser/places/starred48.png           (places/starred48.png)
+  skin/classic/browser/places/unstarred48.png         (places/unstarred48.png)
+  skin/classic/browser/places/places.css              (places/places.css)
+  skin/classic/browser/places/organizer.css           (places/organizer.css)
+  skin/classic/browser/places/organizer.xml           (places/organizer.xml)
+  skin/classic/browser/places/query.png               (places/query.png)
+  skin/classic/browser/places/tag.png                 (places/tag.png)
+  skin/classic/browser/places/toolbarDropMarker.png   (places/toolbarDropMarker.png)
+  skin/classic/browser/places/unsortedBookmarks.png   (places/unsortedBookmarks.png)
+  skin/classic/browser/places/downloads.png           (places/downloads.png)
+  skin/classic/browser/preferences/alwaysAsk.png      (preferences/alwaysAsk.png)
+  skin/classic/browser/preferences/preferences.css    (preferences/preferences.css)
+* skin/classic/browser/preferences/in-content/preferences.css (preferences/in-content/preferences.css)
+* skin/classic/browser/preferences/in-content/dialog.css      (preferences/in-content/dialog.css)
+  skin/classic/browser/preferences/applications.css   (preferences/applications.css)
+  skin/classic/browser/social/services-16.png         (social/services-16.png)
+  skin/classic/browser/social/services-64.png         (social/services-64.png)
+  skin/classic/browser/social/share-button.png        (social/share-button.png)
+  skin/classic/browser/social/share-button-active.png (social/share-button-active.png)
+  skin/classic/browser/tabbrowser/alltabs.png         (tabbrowser/alltabs.png)
+  skin/classic/browser/tabbrowser/alltabs-inverted.png (tabbrowser/alltabs-inverted.png)
+  skin/classic/browser/tabbrowser/newtab.svg                (tabbrowser/newtab.svg)
+  skin/classic/browser/tabbrowser/newtab-inverted.svg       (tabbrowser/newtab-inverted.svg)
+  skin/classic/browser/tabbrowser/tab-active-middle.png     (tabbrowser/tab-active-middle.png)
+  skin/classic/browser/tabbrowser/tab-active-middle@2x.png  (tabbrowser/tab-active-middle@2x.png)
+  skin/classic/browser/tabbrowser/tab-arrow-left.png        (tabbrowser/tab-arrow-left.png)
+  skin/classic/browser/tabbrowser/tab-arrow-left-inverted.png (tabbrowser/tab-arrow-left-inverted.png)
+  skin/classic/browser/tabbrowser/tab-background-end.png    (tabbrowser/tab-background-end.png)
+  skin/classic/browser/tabbrowser/tab-background-end@2x.png (tabbrowser/tab-background-end@2x.png)
+  skin/classic/browser/tabbrowser/tab-background-middle.png    (tabbrowser/tab-background-middle.png)
+  skin/classic/browser/tabbrowser/tab-background-middle@2x.png (tabbrowser/tab-background-middle@2x.png)
+  skin/classic/browser/tabbrowser/tab-background-start.png     (tabbrowser/tab-background-start.png)
+  skin/classic/browser/tabbrowser/tab-background-start@2x.png  (tabbrowser/tab-background-start@2x.png)
+
+# NOTE: The following two files (tab-selected-end.svg, tab-selected-start.svg) get pre-processed in
+#       Makefile.in with a non-default marker of "%" and the result of that gets packaged.
+  skin/classic/browser/tabbrowser/tab-selected-end.svg      (tab-selected-end.svg)
+  skin/classic/browser/tabbrowser/tab-selected-start.svg    (tab-selected-start.svg)
+
+  skin/classic/browser/tabbrowser/tab-stroke-end.png        (tabbrowser/tab-stroke-end.png)
+  skin/classic/browser/tabbrowser/tab-stroke-end@2x.png     (tabbrowser/tab-stroke-end@2x.png)
+  skin/classic/browser/tabbrowser/tab-stroke-start.png      (tabbrowser/tab-stroke-start.png)
+  skin/classic/browser/tabbrowser/tab-stroke-start@2x.png   (tabbrowser/tab-stroke-start@2x.png)
+  skin/classic/browser/tabbrowser/tabDragIndicator.png      (tabbrowser/tabDragIndicator.png)
+
+  skin/classic/browser/sync-16.png
+  skin/classic/browser/sync-32.png
+  skin/classic/browser/sync-bg.png
+  skin/classic/browser/sync-128.png
+  skin/classic/browser/sync-desktopIcon.svg  (../shared/sync-desktopIcon.svg)
+  skin/classic/browser/sync-horizontalbar.png
+  skin/classic/browser/sync-horizontalbar@2x.png
+  skin/classic/browser/sync-mobileIcon.svg  (../shared/sync-mobileIcon.svg)
+  skin/classic/browser/sync-notification-24.png
+  skin/classic/browser/syncProgress-menuPanel.png
+  skin/classic/browser/syncProgress-menuPanel@2x.png
+  skin/classic/browser/syncProgress-toolbar.png
+  skin/classic/browser/syncProgress-toolbar-inverted.png
+  skin/classic/browser/syncSetup.css
+  skin/classic/browser/syncCommon.css
+  skin/classic/browser/syncQuota.css
+  skin/classic/browser/syncProgress-horizontalbar.png
+  skin/classic/browser/syncProgress-horizontalbar@2x.png
+#ifdef E10S_TESTING_ONLY
+  skin/classic/browser/e10s-64@2x.png (../shared/e10s-64@2x.png)
+#endif
+
+[extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
+% override chrome://browser/skin/feeds/audioFeedIcon.png              chrome://browser/skin/feeds/feedIcon.png
+% override chrome://browser/skin/feeds/audioFeedIcon16.png            chrome://browser/skin/feeds/feedIcon16.png
+% override chrome://browser/skin/feeds/videoFeedIcon.png              chrome://browser/skin/feeds/feedIcon.png
+% override chrome://browser/skin/feeds/videoFeedIcon16.png            chrome://browser/skin/feeds/feedIcon16.png
diff --git a/browser/themes/linux/linuxShared.inc b/browser/themes/linux/linuxShared.inc
new file mode 100644
index 000000000..80f88ae73
--- /dev/null
+++ b/browser/themes/linux/linuxShared.inc
@@ -0,0 +1,13 @@
+/* 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/. */
+
+%filter substitution
+
+%define toolbarHighlight hsla(0,0%,100%,.15)
+%define toolbarHighlightLWT rgba(255,255,255,.4)
+/* navbarInsetHighlight is tightly coupled to the toolbarHighlight constant. */
+%define navbarInsetHighlight hsla(0,0%,100%,.4)
+%define fgTabTexture linear-gradient(transparent 2px, @toolbarHighlight@ 2px, @toolbarHighlight@)
+%define fgTabTextureLWT linear-gradient(transparent 2px, @toolbarHighlightLWT@ 2px, @toolbarHighlightLWT@)
+%define fgTabBackgroundColor -moz-dialog
diff --git a/browser/themes/linux/menuPanel-customize.png b/browser/themes/linux/menuPanel-customize.png
new file mode 100644
index 000000000..e0b0a70a3
--- /dev/null
+++ b/browser/themes/linux/menuPanel-customize.png
diff --git a/browser/themes/linux/menuPanel-customize@2x.png b/browser/themes/linux/menuPanel-customize@2x.png
new file mode 100644
index 000000000..5ce3b766a
--- /dev/null
+++ b/browser/themes/linux/menuPanel-customize@2x.png
diff --git a/browser/themes/linux/menuPanel-exit.png b/browser/themes/linux/menuPanel-exit.png
new file mode 100644
index 000000000..8daaffe95
--- /dev/null
+++ b/browser/themes/linux/menuPanel-exit.png
diff --git a/browser/themes/linux/menuPanel-exit@2x.png b/browser/themes/linux/menuPanel-exit@2x.png
new file mode 100644
index 000000000..d48426546
--- /dev/null
+++ b/browser/themes/linux/menuPanel-exit@2x.png
diff --git a/browser/themes/linux/menuPanel-help.png b/browser/themes/linux/menuPanel-help.png
new file mode 100644
index 000000000..962001ff6
--- /dev/null
+++ b/browser/themes/linux/menuPanel-help.png
diff --git a/browser/themes/linux/menuPanel-help@2x.png b/browser/themes/linux/menuPanel-help@2x.png
new file mode 100644
index 000000000..b8f0a80fa
--- /dev/null
+++ b/browser/themes/linux/menuPanel-help@2x.png
diff --git a/browser/themes/linux/monitor.png b/browser/themes/linux/monitor.png
new file mode 100644
index 000000000..35e7b2056
--- /dev/null
+++ b/browser/themes/linux/monitor.png
diff --git a/browser/themes/linux/monitor_16-10.png b/browser/themes/linux/monitor_16-10.png
new file mode 100644
index 000000000..41950340e
--- /dev/null
+++ b/browser/themes/linux/monitor_16-10.png
diff --git a/browser/themes/linux/moz.build b/browser/themes/linux/moz.build
new file mode 100644
index 000000000..8b611040d
--- /dev/null
+++ b/browser/themes/linux/moz.build
@@ -0,0 +1,11 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+DIRS += ['communicator']
+
+JAR_MANIFESTS += ['jar.mn']
+
+include('../tab-svgs.mozbuild')
diff --git a/browser/themes/linux/newtab/newTab.css b/browser/themes/linux/newtab/newTab.css
new file mode 100644
index 000000000..371594f06
--- /dev/null
+++ b/browser/themes/linux/newtab/newTab.css
@@ -0,0 +1,19 @@
+/* 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/. */
+
+%include ../../shared/newtab/newTab.inc.css
+
+
+.newtab-undo-button {
+  color: rgb(221,72,20);
+}
+
+#newtab-undo-close-button {
+  height: 16px;
+  width: 16px;
+}
+
+.newtab-title {
+  font-family: sans-serif;
+}
diff --git a/browser/themes/linux/page-livemarks.png b/browser/themes/linux/page-livemarks.png
new file mode 100644
index 000000000..c3b534e04
--- /dev/null
+++ b/browser/themes/linux/page-livemarks.png
diff --git a/browser/themes/linux/pageInfo.css b/browser/themes/linux/pageInfo.css
new file mode 100644
index 000000000..6cf37a7c9
--- /dev/null
+++ b/browser/themes/linux/pageInfo.css
@@ -0,0 +1,267 @@
+%if 0
+/* 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/. */
+%endif
+
+@import url("chrome://global/skin/");
+
+/* View buttons */
+#viewGroup > radio {
+  list-style-image: url("chrome://browser/skin/pageInfo.png");
+  -moz-box-orient: vertical;
+  -moz-box-align: center;
+  -moz-appearance: none;
+  min-width: 4.5em;
+  margin: 0;
+  padding: 3px;
+  color: -moz-FieldText;
+}
+
+#viewGroup > radio[selected="true"] {
+  background-color: Highlight;
+  color: HighlightText;
+}
+
+#topBar {
+  -moz-appearance: listbox;
+  margin: 8px 8px 0;
+}
+
+#generalTab {
+  -moz-image-region: rect(0px, 32px, 32px, 0px)
+}
+
+#mediaTab {
+  -moz-image-region: rect(0px, 64px, 32px, 32px)
+}
+
+#feedTab {
+  -moz-image-region: rect(0px, 96px, 32px, 64px)
+}
+
+#permTab {
+  -moz-image-region: rect(0px, 128px, 32px, 96px)
+}
+
+#securityTab {
+  -moz-image-region: rect(0px, 160px, 32px, 128px)
+}
+
+#mainDeck {
+  padding-left: 2px;
+  padding-right: 2px;
+}
+
+deck {
+  padding: 10px 10px 10px 10px;
+}
+
+/* Misc */
+tree {
+  margin: .5em;
+}
+
+.gridSeparator {
+  width: .5em;
+}
+
+textbox {
+  background: transparent !important;
+  border: none;
+  padding: 0px;
+  margin-top: 1px;
+  -moz-appearance: none;
+}
+
+textbox.header {
+  margin-inline-start: 0;
+}
+
+.iframe {
+  margin: .5em;
+  background: white;
+  overflow: auto;
+}
+
+.fixedsize {
+  height: 8.5em;
+}
+
+textbox[disabled] {
+  font-style: italic;
+}
+
+/* General Tab */
+#generalPanel > #titletext {
+  margin-inline-start: 5px;
+}
+
+groupbox.collapsable caption .caption-icon {
+  width: 9px;
+  height: 9px;
+  background-repeat: no-repeat;
+  background-position: center;
+  margin-inline-start: 1px;
+  margin-inline-end: 3px;
+  background-image: url("chrome://global/skin/tree/twisty-open.png");
+}
+
+groupbox.collapsable[closed="true"] {
+  border: none;
+}
+
+groupbox.collapsable[closed="true"] caption .caption-icon {
+  background-image: url("chrome://global/skin/tree/twisty-clsd.png");
+}
+
+groupbox tree {
+  margin: 0;
+  border: none;
+}
+
+groupbox.treebox .groupbox-body {
+  margin-inline-start: 5px;
+  margin-inline-end: 1px;
+  padding-top: 0;
+}
+
+#securityBox description {
+  margin-inline-start: 10px;
+}
+
+#general-security-identity {
+  white-space: pre-wrap;
+  line-height: 2em;
+}
+
+/* Media Tab */
+#imagetree {
+  min-height: 10em;
+  margin-top: 2px;
+  margin-bottom: 0;
+}
+
+#mediaSplitter {
+  -moz-appearance: none;
+  height: .8em;
+}
+
+#mediaGrid {
+  min-height: 9em;
+}
+
+#mediaLabelColumn {
+  min-width: 10em;
+}
+
+#thepreviewimage {
+  margin: 1em;
+}
+
+treechildren::-moz-tree-cell-text(broken) {
+  font-style: italic;
+  color: graytext;
+}
+
+#mediaPreviewBox .inset {
+  -moz-appearance: listbox;
+  margin-bottom: 0;
+}
+
+/* Feeds Tab */
+#feedPanel {
+  margin-left: 2px;
+  margin-right: 2px;
+}
+
+#feedtree {
+  margin-bottom: 0px;
+}
+
+#feedListbox richlistitem {
+  padding-top: 6px;
+  padding-bottom: 6px;
+  padding-inline-start: 7px;
+  padding-inline-end: 7px;
+  min-height: 25px;
+  border-bottom: 1px dotted #C0C0C0;
+  color: -moz-FieldText;
+}
+
+#feedListbox richlistitem[selected="true"] {
+  background-color: -moz-Dialog;
+  color: -moz-DialogText;
+}
+
+#feedListbox {
+  margin-bottom: 0;
+  border: 2px solid;
+  -moz-border-top-colors: ThreeDShadow ThreeDDarkShadow;
+  -moz-border-right-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-bottom-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-left-colors: ThreeDShadow ThreeDDarkShadow;
+}
+
+.feedTitle {
+  font-weight: bold;
+}
+
+/* Permissions Tab */
+#permPanel {
+  margin-left: 6px;
+  margin-right: 6px;
+}
+
+#permList {
+  -moz-appearance: listbox;
+  margin-top: .5em;
+  overflow: auto;
+  border: 2px solid;
+  -moz-border-top-colors: ThreeDShadow ThreeDDarkShadow;
+  -moz-border-right-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-bottom-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-left-colors: ThreeDShadow ThreeDDarkShadow;
+  background-color: -moz-field;
+  color: -moz-FieldText;
+}
+
+.permission {
+  padding-top: 6px;
+  padding-bottom: 6px;
+  padding-inline-start: 7px;
+  padding-inline-end: 7px;
+  min-height: 25px;
+  border-bottom: 1px dotted #C0C0C0;
+}
+
+.permissionLabel {
+  font-weight: bold;
+}
+
+.permission:hover {
+  background-color: -moz-dialog;
+  color: -moz-DialogText;
+}
+
+/* Security Tab */
+#securityPanel .caption-icon {
+  display: none;
+}
+
+#securityPanel .header {
+  font-size: 120%;
+}
+
+#securityPanel .fieldLabel {
+  margin: 2px 10px 3px;
+}
+
+#securityPanel .fieldValue {
+  font-weight: bold;
+  margin: 2px 10px 3px;
+}
+
+#securityPanel row {
+  -moz-box-align: center;
+}
diff --git a/browser/themes/linux/pageInfo.png b/browser/themes/linux/pageInfo.png
new file mode 100644
index 000000000..2cbb15df9
--- /dev/null
+++ b/browser/themes/linux/pageInfo.png
diff --git a/browser/themes/linux/places/autocomplete-star.png b/browser/themes/linux/places/autocomplete-star.png
new file mode 100644
index 000000000..2675f9345
--- /dev/null
+++ b/browser/themes/linux/places/autocomplete-star.png
diff --git a/browser/themes/linux/places/bookmarks-menu-arrow.png b/browser/themes/linux/places/bookmarks-menu-arrow.png
new file mode 100644
index 000000000..616f16b7f
--- /dev/null
+++ b/browser/themes/linux/places/bookmarks-menu-arrow.png
diff --git a/browser/themes/linux/places/bookmarks-notification-finish.png b/browser/themes/linux/places/bookmarks-notification-finish.png
new file mode 100644
index 000000000..8520b4985
--- /dev/null
+++ b/browser/themes/linux/places/bookmarks-notification-finish.png
diff --git a/browser/themes/linux/places/bookmarksMenu.png b/browser/themes/linux/places/bookmarksMenu.png
new file mode 100644
index 000000000..80dd2168d
--- /dev/null
+++ b/browser/themes/linux/places/bookmarksMenu.png
diff --git a/browser/themes/linux/places/bookmarksToolbar-menuPanel.png b/browser/themes/linux/places/bookmarksToolbar-menuPanel.png
new file mode 100644
index 000000000..367a9090d
--- /dev/null
+++ b/browser/themes/linux/places/bookmarksToolbar-menuPanel.png
diff --git a/browser/themes/linux/places/bookmarksToolbar.png b/browser/themes/linux/places/bookmarksToolbar.png
new file mode 100644
index 000000000..09502fe83
--- /dev/null
+++ b/browser/themes/linux/places/bookmarksToolbar.png
diff --git a/browser/themes/linux/places/calendar.png b/browser/themes/linux/places/calendar.png
new file mode 100644
index 000000000..f7128685c
--- /dev/null
+++ b/browser/themes/linux/places/calendar.png
diff --git a/browser/themes/linux/places/downloads.png b/browser/themes/linux/places/downloads.png
new file mode 100644
index 000000000..d641714aa
--- /dev/null
+++ b/browser/themes/linux/places/downloads.png
diff --git a/browser/themes/linux/places/editBookmarkOverlay.css b/browser/themes/linux/places/editBookmarkOverlay.css
new file mode 100644
index 000000000..dba6ba655
--- /dev/null
+++ b/browser/themes/linux/places/editBookmarkOverlay.css
@@ -0,0 +1,71 @@
+%if 0
+/* 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/. */
+%endif
+/**** folder menulist ****/
+.folder-icon > .menulist-label-box > .menulist-icon {
+  width: 16px;
+  height: 16px;
+}
+
+.folder-icon > .menu-iconic-left {
+  display: -moz-box;
+}
+
+.folder-icon {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu") !important;
+}
+
+
+/**** expanders ****/
+
+.expander-up,
+.expander-down {
+  min-width: 0;
+  padding: 2px 0;
+  padding-inline-start: 2px;
+}
+
+.expander-up > .button-box {
+  -moz-appearance: button-arrow-up;
+}
+
+.expander-down > .button-box {
+  -moz-appearance: button-arrow-down;
+}
+
+#editBookmarkPanelContent {
+  min-width: 23em;
+}
+
+#editBMPanel_folderTree {
+  margin-top: 2px;
+  margin-bottom: 2px;
+}
+
+/* Hide the value column of the tag autocomplete popup
+ * leaving only the comment column visible. This is
+ * so that only the tag being edited is shown in the
+ * popup.
+ */
+#editBMPanel_tagsField #treecolAutoCompleteValue {
+  visibility: collapse;
+}
+
+
+/* Bookmark panel dropdown menu items */
+#editBMPanel_folderMenuList[selectedIndex="0"],
+#editBMPanel_toolbarFolderItem {
+  list-style-image: url("chrome://browser/skin/places/bookmarksToolbar.png") !important;  
+}
+
+#editBMPanel_folderMenuList[selectedIndex="1"],
+#editBMPanel_bmRootItem {
+  list-style-image: url("chrome://browser/skin/places/bookmarksMenu.png") !important;  
+}
+
+#editBMPanel_folderMenuList[selectedIndex="2"],
+#editBMPanel_unfiledRootItem {
+  list-style-image: url("chrome://browser/skin/places/unsortedBookmarks.png") !important;  
+}
diff --git a/browser/themes/linux/places/livemark-item.png b/browser/themes/linux/places/livemark-item.png
new file mode 100644
index 000000000..9184b9518
--- /dev/null
+++ b/browser/themes/linux/places/livemark-item.png
diff --git a/browser/themes/linux/places/organizer.css b/browser/themes/linux/places/organizer.css
new file mode 100644
index 000000000..d1881dbb4
--- /dev/null
+++ b/browser/themes/linux/places/organizer.css
@@ -0,0 +1,103 @@
+/* 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/. */
+
+
+/* Toolbar */
+#placesToolbar {
+  -moz-appearance: menubar;
+}
+
+#placesToolbar:-moz-system-metric(menubar-drag) {
+  -moz-binding: url("chrome://global/content/bindings/toolbar.xml#toolbar-drag");
+}
+
+#placesToolbar > toolbarbutton {
+  color: -moz-menubartext;
+}
+
+#placesToolbar > toolbarbutton:hover {
+  color: ButtonText;
+}
+
+#placesToolbar > toolbarbutton[disabled=true] {
+  color: GrayText;
+}
+
+/* back button */
+
+#back-button {
+  list-style-image: url("moz-icon://stock/gtk-go-back-ltr?size=toolbar");
+}
+#back-button[disabled="true"] {
+  list-style-image: url("moz-icon://stock/gtk-go-back-ltr?size=toolbar&state=disabled");
+}
+
+#back-button:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-back-rtl?size=toolbar");
+}
+#back-button[disabled="true"]:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-back-rtl?size=toolbar&state=disabled");
+}
+
+/* forward button */
+
+#forward-button {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-ltr?size=toolbar");
+}
+#forward-button[disabled="true"] {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-ltr?size=toolbar&state=disabled");
+}
+
+#forward-button:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-rtl?size=toolbar");
+}
+#forward-button[disabled="true"]:-moz-locale-dir(rtl) {
+  list-style-image: url("moz-icon://stock/gtk-go-forward-rtl?size=toolbar&state=disabled");
+}
+
+/* Menu */
+#placesMenu {
+  -moz-appearance: none;
+  border: none;
+}
+
+#placesMenu > menu {
+  padding-inline-start: 4px;
+  -moz-binding: url("chrome://browser/skin/places/organizer.xml#toolbarbutton-dropdown");
+  -moz-appearance: toolbarbutton;
+}
+
+#placesMenu > menu:active,
+#placesMenu > menu:hover,
+#placesMenu > menu[open] {
+  color: ButtonText;
+}
+
+#placesMenu > menu > .menubar-right {
+  -moz-appearance: toolbarbutton-dropdown;
+  width: 12px;
+  height: 12px;
+}
+
+/* Root View */
+#placesView {
+  background-color: Window;
+}
+
+/* Info box */
+#detailsDeck {
+  padding: 5px;
+}
+
+#infoBoxExpanderLabel {
+  padding-inline-start: 2px;
+}
+
+/**
+ * Downloads pane
+ */
+
+#clearDownloadsButton > .toolbarbutton-icon {
+  display: none;
+}
diff --git a/browser/themes/linux/places/organizer.xml b/browser/themes/linux/places/organizer.xml
new file mode 100644
index 000000000..8331ebb11
--- /dev/null
+++ b/browser/themes/linux/places/organizer.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<!-- 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/. -->
+
+<bindings id="organizerBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+  <binding id="toolbarbutton-dropdown"
+           extends="chrome://global/content/bindings/menu.xml#menu-base">
+    <content>
+      <xul:image class="menubar-left" xbl:inherits="src=image"/>
+      <xul:label class="menubar-text" xbl:inherits="value=label,accesskey,crop" crop="right"/>
+      <xul:hbox class="menubar-right"/>
+      <children includes="menupopup"/>
+    </content>
+  </binding>
+</bindings>
diff --git a/browser/themes/linux/places/places.css b/browser/themes/linux/places/places.css
new file mode 100644
index 000000000..776191dd5
--- /dev/null
+++ b/browser/themes/linux/places/places.css
@@ -0,0 +1,122 @@
+/* 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/. */
+
+/* Sidebars */
+.sidebar-placesTree {
+  margin: 0;
+}
+
+.sidebar-placesTreechildren::-moz-tree-cell(leaf) ,
+.sidebar-placesTreechildren::-moz-tree-image(leaf) {
+  cursor: pointer;
+}
+
+.sidebar-placesTreechildren::-moz-tree-cell-text(leaf, hover) {
+  cursor: pointer;
+  text-decoration: underline;
+}
+
+.sidebar-placesTreechildren::-moz-tree-cell(separator) {
+  cursor: default;
+}
+
+/* Trees */
+treechildren::-moz-tree-image(title) {
+  padding-right: 2px;
+  margin: 0px 2px;
+  width: 16px;
+  height: 16px;
+  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
+}
+
+treechildren::-moz-tree-image(title, livemarkItem) {
+  list-style-image: url("chrome://browser/skin/places/livemark-item.png");
+  -moz-image-region: rect(0px, 16px, 16px, 0px);
+}
+
+treechildren::-moz-tree-image(title, livemarkItem, visited) {
+  -moz-image-region: rect(0px, 32px, 16px, 16px);
+}
+
+treechildren::-moz-tree-image(title, separator) {
+  list-style-image: none;
+  width: 0;
+  height: 0;
+}
+
+treechildren::-moz-tree-image(title, container) {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+treechildren::-moz-tree-image(title, container, livemark) {
+  list-style-image: url("chrome://browser/skin/feeds/feedIcon16.png");
+  -moz-image-region: auto;
+}
+
+treechildren::-moz-tree-image(container, OrganizerQuery_AllBookmarks) {
+  list-style-image: url("chrome://browser/skin/Toolbar-small.png");
+  -moz-image-region: rect(0px 48px 16px 32px);
+}
+
+treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksToolbar) {
+  list-style-image: url("chrome://browser/skin/places/bookmarksToolbar.png");
+  -moz-image-region: auto;
+}
+
+treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksMenu) {
+  list-style-image: url("chrome://browser/skin/places/bookmarksMenu.png");
+  -moz-image-region: auto;
+}
+
+treechildren::-moz-tree-image(container, OrganizerQuery_UnfiledBookmarks) {
+  list-style-image: url("chrome://browser/skin/places/unsortedBookmarks.png");
+  -moz-image-region: auto;
+}
+
+/* query-nodes should be styled even if they're not expandable */
+treechildren::-moz-tree-image(title, query) {
+  list-style-image: url("chrome://browser/skin/places/query.png");
+}
+
+treechildren::-moz-tree-image(query, OrganizerQuery_Downloads) {
+  list-style-image: url("chrome://browser/skin/places/downloads.png");
+  -moz-image-region: auto;
+}
+
+treechildren::-moz-tree-image(title, query, tagContainer),
+treechildren::-moz-tree-image(query, OrganizerQuery_Tags) {
+  list-style-image: url("chrome://browser/skin/places/tag.png");
+}
+
+/* calendar icon for folders grouping items by date */
+treechildren::-moz-tree-image(title, query, dayContainer) {
+  list-style-image: url("chrome://browser/skin/places/calendar.png");
+}
+
+treechildren::-moz-tree-image(title, query, hostContainer) {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+treechildren::-moz-tree-image(title, query, hostContainer, open) {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+treechildren::-moz-tree-image(title, query, OrganizerQuery_History) {
+  list-style-image: url("chrome://browser/skin/Toolbar-small.png");
+  -moz-image-region: rect(0px 32px 16px 16px);
+}
+
+/* We want some queries to look like ordinary folders. This must come
+   after the (title, query) selector, or it would get overridden. */
+treechildren::-moz-tree-image(title, query, folder) {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+treechildren::-moz-tree-image(cutting) {
+  opacity: 0.5;
+}
+
+treechildren::-moz-tree-cell-text(cutting) {
+  opacity: 0.7;
+}
diff --git a/browser/themes/linux/places/query.png b/browser/themes/linux/places/query.png
new file mode 100644
index 000000000..2420dee0e
--- /dev/null
+++ b/browser/themes/linux/places/query.png
diff --git a/browser/themes/linux/places/starred48.png b/browser/themes/linux/places/starred48.png
new file mode 100644
index 000000000..bdcc7e757
--- /dev/null
+++ b/browser/themes/linux/places/starred48.png
diff --git a/browser/themes/linux/places/tag.png b/browser/themes/linux/places/tag.png
new file mode 100644
index 000000000..27176cc6d
--- /dev/null
+++ b/browser/themes/linux/places/tag.png
diff --git a/browser/themes/linux/places/toolbarDropMarker.png b/browser/themes/linux/places/toolbarDropMarker.png
new file mode 100644
index 000000000..ed3200f6c
--- /dev/null
+++ b/browser/themes/linux/places/toolbarDropMarker.png
diff --git a/browser/themes/linux/places/unsortedBookmarks.png b/browser/themes/linux/places/unsortedBookmarks.png
new file mode 100644
index 000000000..4dcf76138
--- /dev/null
+++ b/browser/themes/linux/places/unsortedBookmarks.png
diff --git a/browser/themes/linux/places/unstarred48.png b/browser/themes/linux/places/unstarred48.png
new file mode 100644
index 000000000..15448636e
--- /dev/null
+++ b/browser/themes/linux/places/unstarred48.png
diff --git a/browser/themes/linux/preferences/alwaysAsk.png b/browser/themes/linux/preferences/alwaysAsk.png
new file mode 100644
index 000000000..45256d4e7
--- /dev/null
+++ b/browser/themes/linux/preferences/alwaysAsk.png
diff --git a/browser/themes/linux/preferences/applications.css b/browser/themes/linux/preferences/applications.css
new file mode 100644
index 000000000..508076304
--- /dev/null
+++ b/browser/themes/linux/preferences/applications.css
@@ -0,0 +1,66 @@
+/* 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/. */
+
+/**
+ * Line up the actions menu with action labels above and below it.
+ * Equalize the distance from the left side of the action box to the left side
+ * of the icon for both the menu and the non-menu versions of the action box.
+ * Also make sure the labels are the same distance away from the icons.
+ */
+.actionsMenu {
+  margin-top: -1px;
+  margin-bottom: -1px;
+  margin-inline-start: -1px;
+  margin-inline-end: 0;
+}
+
+.typeIcon,
+.actionIcon {
+  margin-inline-start: 3px;
+  margin-inline-end: 3px;
+}
+
+#handlersView > richlistitem label {
+  margin-inline-start: 1px;
+  margin-top: 2px;
+}
+
+#handlersView > richlistitem {
+  min-height: 25px;
+}
+
+richlistitem[appHandlerIcon="ask"],
+menuitem[appHandlerIcon="ask"] {
+  list-style-image: url("chrome://browser/skin/preferences/alwaysAsk.png");
+}
+
+richlistitem[appHandlerIcon="save"],
+menuitem[appHandlerIcon="save"] {
+  list-style-image: url("moz-icon://stock/gtk-save?size=menu");
+}
+
+richlistitem[appHandlerIcon="feed"],
+menuitem[appHandlerIcon="feed"] {
+  list-style-image: url("chrome://browser/skin/page-livemarks.png");
+}
+
+richlistitem[appHandlerIcon="plugin"],
+menuitem[appHandlerIcon="plugin"] {
+  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric-16.png");
+}
+
+.actionsMenu .menulist-icon {
+  margin-inline-end: 1px;
+  height: 16px;
+  width: 16px;
+}
+
+.actionsMenu > menupopup > menuitem > .menu-iconic-left {
+  padding-inline-start: 0;
+  padding-inline-end: 4px !important;
+}
+
+.actionsMenu > menupopup > menuitem {
+  padding-inline-start: 3px;
+}
diff --git a/browser/themes/linux/preferences/in-content/dialog.css b/browser/themes/linux/preferences/in-content/dialog.css
new file mode 100644
index 000000000..3b1ae45e0
--- /dev/null
+++ b/browser/themes/linux/preferences/in-content/dialog.css
@@ -0,0 +1,19 @@
+/* - 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/. */
+
+%include ../../../shared/incontentprefs/dialog.inc.css
+
+label:not(.menu-text),
+textbox,
+description,
+.tab-text,
+caption > label {
+  font-size: 1.2em;
+}
+
+/* Create a separate rule to unset these styles on .tree-input instead of
+   using :not(.tree-input) so the selector specifity doesn't change. */
+textbox.tree-input {
+  font-size: unset;
+}
diff --git a/browser/themes/linux/preferences/in-content/preferences.css b/browser/themes/linux/preferences/in-content/preferences.css
new file mode 100644
index 000000000..91997aa0d
--- /dev/null
+++ b/browser/themes/linux/preferences/in-content/preferences.css
@@ -0,0 +1,48 @@
+/* - 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/. */
+
+%include ../../../shared/incontentprefs/preferences.inc.css
+
+.treecol-sortdirection {
+  /* override the Linux only toolkit rule */
+  -moz-appearance: none;
+}
+
+.actionsMenu {
+  font-family: "Clear Sans", sans-serif;
+  font-size: 1.25rem;
+  line-height: 22px;
+}
+
+.actionsMenu > .menulist-label-box > .menulist-icon {
+  margin-top: 1px;
+  margin-inline-start: 1px;
+  margin-inline-end: 6px;
+}
+
+.actionsMenu > .menulist-label-box > .menulist-label {
+  margin-top: 2px !important;
+}
+
+#fxaProfileImage {
+  -moz-user-focus: normal;
+}
+
+menulist.actionsMenu > .menulist-dropmarker {
+  margin-top: 11px;
+  margin-bottom: 11px;
+}
+
+textbox + button,
+filefield + button {
+  margin-inline-start: -4px;
+}
+
+/**
+ * Dialog
+ */
+
+#dialogTitle {
+  font-size: 1em;
+}
diff --git a/browser/themes/linux/preferences/mail.png b/browser/themes/linux/preferences/mail.png
new file mode 100644
index 000000000..66d2bc9e0
--- /dev/null
+++ b/browser/themes/linux/preferences/mail.png
diff --git a/browser/themes/linux/preferences/preferences.css b/browser/themes/linux/preferences/preferences.css
new file mode 100644
index 000000000..45e2dc23d
--- /dev/null
+++ b/browser/themes/linux/preferences/preferences.css
@@ -0,0 +1,106 @@
+/*
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# 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/.
+*/
+
+/* Global Styles */
+.checkbox-check {
+  -moz-appearance: checkbox;
+}
+
+/* General Pane */
+#useFirefoxSync,
+#getStarted {
+  font-size: 90%;
+}
+
+#isNotDefaultLabel {
+  font-weight: bold;
+}
+
+/* Content Pane */
+#translationAttributionImage {
+  width: 70px;
+  cursor: pointer;
+}
+
+/* Modeless Window Dialogs */
+.windowDialog,
+.windowDialog prefpane {
+  padding: 0px;
+}
+
+.contentPane {
+  margin: 9px 8px 5px 8px;
+}
+
+.actionButtons {
+  margin: 0px 3px 6px 3px !important;
+}
+
+/* Cookies Manager */
+#cookiesChildren::-moz-tree-image(domainCol) {
+  width: 16px;
+  height: 16px;
+  margin: 0px 2px;
+  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
+}
+
+#linksOpenInBox {
+  margin-top: 5px;
+}
+
+#advancedPrefs {
+  margin-left: 0;
+  margin-right: 0; 
+}
+
+#cookiesChildren::-moz-tree-image(domainCol, container) {
+  list-style-image: url("moz-icon://stock/gtk-directory?size=menu");
+}
+
+#cookieInfoBox {
+  border: 1px solid ThreeDShadow;
+  border-radius: 0px;
+  margin: 4px;
+  padding: 0px;
+}
+
+/* bottom-most box containing a groupbox in a prefpane. Prevents the bottom
+   of the groupbox from being cutoff */
+.bottomBox {
+  padding-bottom: 4px;
+}
+
+/**
+ * Clear Private Data
+ */
+#SanitizeDialogPane > groupbox {
+  margin-top: 0;
+}
+
+/* Sync Pane */
+
+#syncDesc {
+  padding: 0 8em;
+}
+
+#accountCaptionImage {
+  list-style-image: url("chrome://mozapps/skin/profile/profileicon.png");
+}
+
+#syncAddDeviceLabel {
+  margin-top: 1em;
+  margin-bottom: 1em;
+}
+
+#noFxaAccount {
+  margin: 5px;
+  line-height: 1.2em;
+}
+
+#noFxaAccount > label:first-child {
+  margin-bottom: 0.6em;
+}
diff --git a/browser/themes/linux/privatebrowsing-mask.png b/browser/themes/linux/privatebrowsing-mask.png
new file mode 100644
index 000000000..9eaf3aec7
--- /dev/null
+++ b/browser/themes/linux/privatebrowsing-mask.png
diff --git a/browser/themes/linux/reload-stop-go.png b/browser/themes/linux/reload-stop-go.png
new file mode 100644
index 000000000..1017be903
--- /dev/null
+++ b/browser/themes/linux/reload-stop-go.png
diff --git a/browser/themes/linux/reload-stop-go@2x.png b/browser/themes/linux/reload-stop-go@2x.png
new file mode 100644
index 000000000..38b27bf0c
--- /dev/null
+++ b/browser/themes/linux/reload-stop-go@2x.png
diff --git a/browser/themes/linux/sanitizeDialog.css b/browser/themes/linux/sanitizeDialog.css
new file mode 100644
index 000000000..e73cd27e7
--- /dev/null
+++ b/browser/themes/linux/sanitizeDialog.css
@@ -0,0 +1,107 @@
+/* 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/. */
+
+#sanitizeDurationChoice {
+  margin-inline-end: 0;
+}
+
+/* Align the duration label with the warning box and item list */
+#sanitizeDurationLabel {
+  margin-inline-start: 3px;
+}
+
+
+/* Hide the duration dropdown suffix label if it's empty.  Otherwise it
+   takes up a little space, causing the end of the dropdown to not be aligned
+   with the warning box. */
+#sanitizeDurationSuffixLabel[value=""] {
+  display: none;
+}
+
+
+/* Places tree */
+#placesTreechildren::-moz-tree-row(selected),
+#placesTreechildren::-moz-tree-row(grippyRow) {
+  background: #999;
+}
+
+#placesTreechildren::-moz-tree-cell-text(selected) {
+  color: #111;
+}
+
+
+/* Sanitize everything warning box */
+#sanitizeEverythingWarningBox {
+  background-color: Window;
+  border: 1px solid ThreeDDarkShadow;
+  border-radius: 5px;
+  padding: 16px;
+}
+
+#sanitizeEverythingWarningIcon {
+  list-style-image: url("moz-icon://stock/gtk-dialog-warning?size=dialog");
+  padding: 0;
+  margin: 0;
+}
+
+#sanitizeEverythingWarningDescBox {
+  padding: 0 16px;
+  margin: 0;
+}
+
+
+/* Progressive disclosure button */
+#detailsExpanderWrapper {
+  padding: 0;
+  margin-top: 6px;
+  margin-bottom: 6px;
+  margin-inline-start: -4px;
+  margin-inline-end: 0;
+}
+
+.expander-up,
+.expander-down {
+  min-width: 0;
+  padding: 2px 0;
+  padding-inline-start: 2px;
+}
+
+.expander-up {
+  list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
+}
+
+.expander-down {
+  list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
+}
+
+.expander-down:hover:active {
+  list-style-image: url("chrome://global/skin/arrow/arrow-dn-hov.gif");
+}
+
+.expander-up:hover:active {
+  list-style-image: url("chrome://global/skin/arrow/arrow-up-hov.gif");
+}
+
+
+/* Make the item list the same width as the warning box */
+#itemList {
+  margin-inline-start: 0;
+  margin-inline-end: 0;
+}
+
+/* Without this a useless scrollbar appears in the listbox when its rows
+   attribute is set to the total number of listitems, as it is currently.  See
+   bug 489958 comment 14 and bug 491788. */
+#itemList > listitem {
+  padding: 1px 0;
+}
+
+
+/* Align the last dialog button with the end of the warning box */
+.prefWindow-dlgbuttons {
+  margin-inline-end: 0;
+}
+.dialog-button[dlgtype="accept"] {
+  margin-inline-end: 0;
+}
diff --git a/browser/themes/linux/searchbar.css b/browser/themes/linux/searchbar.css
new file mode 100644
index 000000000..cb4103db0
--- /dev/null
+++ b/browser/themes/linux/searchbar.css
@@ -0,0 +1,336 @@
+/* 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/. */
+
+#PopupSearchAutoComplete {
+  /* JS code forces the panel to have the width of the searchbar rather than
+   * the width of the textfield. Alignment of the panel with the searchbar is
+   * obtained with negative margins here: margin-inline-start when the text
+   * field is in the same direction as the rest of the UI, margin-inline-end
+   * when the textfield's direction has been reversed.
+   * (eg. using ctrl+shift+X) */
+  margin-inline-start: -23px;
+  margin-inline-end: -16px;
+}
+
+.autocomplete-textbox-container {
+  -moz-box-align: stretch;
+}
+
+.textbox-input-box {
+  margin: 0;
+}
+
+/* Engine button */
+.searchbar-engine-image {
+  height: 16px;
+  width: 16px;
+  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
+  margin-inline-start: -1px;
+}
+
+/* Search go button */
+.search-go-container {
+  -moz-box-align: center;
+}
+
+.search-go-button {
+  padding: 1px;
+  list-style-image: url("chrome://browser/skin/reload-stop-go.png");
+  -moz-image-region: rect(0, 42px, 14px, 28px);
+  width: 14px;
+}
+
+.search-go-button:hover {
+  -moz-image-region: rect(14px, 42px, 28px, 28px);
+}
+
+.search-go-button:hover:active {
+  -moz-image-region: rect(28px, 42px, 42px, 28px);
+}
+
+.search-go-button:-moz-locale-dir(rtl) {
+  transform: scaleX(-1);
+}
+
+menuitem[cmd="cmd_clearhistory"] {
+  list-style-image: url("moz-icon://stock/gtk-clear?size=menu");
+}
+
+menuitem[cmd="cmd_clearhistory"][disabled] {
+  list-style-image: url("moz-icon://stock/gtk-clear?size=menu&state=disabled");
+}
+
+.searchbar-search-button-container {
+  -moz-box-align: center;
+}
+
+.searchbar-search-button {
+  list-style-image: url("chrome://browser/skin/search-indicator.png");
+  -moz-image-region: rect(0, 20px, 20px, 0);
+  margin-top: 1px;
+  margin-bottom: 1px;
+  margin-inline-start: 2px;
+  width: 20px;
+}
+
+.searchbar-search-button[addengines="true"] {
+  list-style-image: url("chrome://browser/skin/search-indicator-badge-add.png");
+}
+
+.searchbar-search-button:hover {
+  -moz-image-region: rect(0, 40px, 20px, 20px);
+}
+
+.searchbar-search-button:hover:active {
+  -moz-image-region: rect(0, 60px, 20px, 40px);
+}
+
+@media (min-resolution: 1.1dppx) {
+  .searchbar-engine-image {
+    list-style-image: url("chrome://mozapps/skin/places/defaultFavicon@2x.png");
+  }
+
+  .searchbar-search-button {
+    list-style-image: url("chrome://browser/skin/search-indicator@2x.png");
+    -moz-image-region: rect(0, 40px, 40px, 0);
+  }
+
+  .searchbar-search-button[addengines="true"] {
+    list-style-image: url("chrome://browser/skin/search-indicator-badge-add@2x.png");
+  }
+
+  .searchbar-search-button:hover {
+    -moz-image-region: rect(0, 80px, 40px, 40px);
+  }
+
+  .searchbar-search-button:hover:active {
+    -moz-image-region: rect(0, 120px, 40px, 80px);
+  }
+
+  .search-go-button {
+    list-style-image: url("chrome://browser/skin/reload-stop-go@2x.png");
+    -moz-image-region: rect(0, 84px, 28px, 56px);
+  }
+
+  .search-go-button:hover {
+    -moz-image-region: rect(28px, 84px, 56px, 56px);
+  }
+
+  .search-go-button:hover:active {
+    -moz-image-region: rect(56px, 84px, 84px, 56px);
+  }
+}
+
+.search-panel-current-engine {
+  -moz-box-align: center;
+}
+
+/**
+ * The borders of the various elements are specified as follows.
+ *
+ * The current engine always has a bottom border.
+ * The search results never have a border.
+ *
+ * When the search results are not collapsed:
+ * - The elements underneath the search results all have a top border.
+ *
+ * When the search results are collapsed:
+ * - The elements underneath the search results all have a bottom border, except
+ *   the lowest one: search-setting-button.
+ */
+
+.search-panel-current-engine {
+  border-top: none !important;
+  border-bottom: 1px solid var(--panel-separator-color) !important;
+}
+
+.search-panel-tree[collapsed=true] + .search-one-offs > .search-panel-header,
+.search-panel-tree[collapsed=true] + .search-one-offs > .search-panel-one-offs,
+.search-panel-tree[collapsed=true] + .search-one-offs > vbox > .addengine-item:first-of-type {
+  border-top: none !important;
+}
+
+.search-panel-tree[collapsed=true] + .search-one-offs > .searchbar-engine-one-off-item,
+.search-panel-tree[collapsed=true] + .search-one-offs > .search-panel-current-input,
+.search-panel-tree[collapsed=true] + .search-one-offs > .search-panel-one-offs,
+.search-panel-tree[collapsed=true] + .search-one-offs > vbox > .addengine-item:last-of-type {
+  border-bottom: 1px solid var(--panel-separator-color) !important;
+}
+
+.search-panel-header {
+  font-weight: normal;
+  background-color: var(--arrowpanel-dimmed);
+  border: none;
+  border-top: 1px solid var(--panel-separator-color);
+  padding: 3px 5px;
+  color: GrayText;
+}
+
+.search-panel-header > label {
+  margin-top: 2px !important;
+  margin-bottom: 1px !important;
+}
+
+.search-panel-current-input > label {
+  margin: 2px 0 1px !important;
+}
+
+.search-panel-input-value {
+  color: -moz-fieldtext;
+}
+
+.search-panel-one-offs {
+  margin: 0 !important;
+  border-top: 1px solid var(--panel-separator-color);
+}
+
+.searchbar-engine-one-off-item {
+  -moz-appearance: none;
+  display: inline-block;
+  border: none;
+  min-width: 48px;
+  height: 32px;
+  margin: 0;
+  padding: 0;
+  background: linear-gradient(transparent 15%, var(--panel-separator-color) 15%, var(--panel-separator-color) 85%, transparent 85%);
+  background-size: 1px auto;
+  background-repeat: no-repeat;
+  background-position: right center;
+  color: GrayText;
+}
+
+.searchbar-engine-one-off-item:-moz-locale-dir(rtl) {
+  background-position: left center;
+}
+
+.searchbar-engine-one-off-item:not(.last-row) {
+  box-sizing: content-box;
+  border-bottom: 1px solid var(--panel-separator-color);
+}
+
+.search-setting-button-compact {
+  border-bottom: none !important;
+}
+
+.search-panel-one-offs:not([compact=true]) > .searchbar-engine-one-off-item.last-of-row,
+.search-panel-one-offs[compact=true] > .searchbar-engine-one-off-item.last-of-row:not(.dummy),
+.search-panel-one-offs[compact=true] > .searchbar-engine-one-off-item.dummy:not(.last-of-row),
+.search-panel-one-offs[compact=true] > .searchbar-engine-one-off-item.last-engine,
+.search-setting-button-compact {
+  background-image: none;
+}
+
+.searchbar-engine-one-off-item[selected] {
+  background-color: Highlight;
+  background-image: none;
+  color: HighlightText;
+}
+
+.searchbar-engine-one-off-item > .button-box {
+  border: none;
+  padding: 0;
+}
+
+.searchbar-engine-one-off-item > .button-box > .button-text {
+  display: none;
+}
+
+.searchbar-engine-one-off-item > .button-box > .button-icon {
+  display: -moz-box;
+  margin-inline-end: 0;
+  width: 16px;
+  height: 16px;
+}
+
+.addengine-item {
+  -moz-appearance: none;
+  background-color: transparent;
+  color: inherit;
+  border: none;
+  height: 32px;
+  margin: 0;
+  padding: 0 10px;
+}
+
+.addengine-item > .button-box {
+  -moz-box-pack: start;
+}
+
+.addengine-item:first-of-type {
+  border-top: 1px solid var(--panel-separator-color);
+}
+
+.addengine-item[selected] {
+  background-color: Highlight;
+  color: HighlightText;
+}
+
+.addengine-icon {
+  width: 16px;
+}
+
+.addengine-badge {
+  width: 16px;
+  height: 16px;
+  margin: -7px -9px 7px 9px;
+  list-style-image: url("chrome://browser/skin/badge-add-engine.png");
+}
+
+.addengine-item > .button-box > .button-text {
+  -moz-box-flex: 1;
+  text-align: start;
+  padding-inline-start: 10px;
+}
+
+.addengine-item:not([image]) {
+  list-style-image: url("chrome://browser/skin/search-engine-placeholder.png");
+}
+
+@media (min-resolution: 1.1dppx) {
+  .addengine-badge {
+    list-style-image: url("chrome://browser/skin/badge-add-engine@2x.png");
+  }
+
+  .addengine-item:not([image]) {
+    list-style-image: url("chrome://browser/skin/search-engine-placeholder@2x.png");
+  }
+}
+
+.search-panel-tree > .autocomplete-treebody::-moz-tree-cell {
+  border-top: none !important;
+}
+
+.search-panel-tree > .autocomplete-treebody::-moz-tree-cell-text {
+  padding-inline-start: 4px;
+}
+
+.search-panel-tree > .autocomplete-treebody::-moz-tree-image {
+  padding-inline-start: 5px;
+  width: 14px;
+  height: 14px;
+}
+
+.search-panel-tree > .autocomplete-treebody::-moz-tree-image(fromhistory) {
+  list-style-image: url("chrome://browser/skin/search-history-icon.svg#search-history-icon");
+}
+
+.search-panel-tree > .autocomplete-treebody::-moz-tree-image(fromhistory, selected) {
+  list-style-image: url("chrome://browser/skin/search-history-icon.svg#search-history-icon-active");
+}
+
+.search-setting-button {
+  -moz-appearance: none;
+  margin: 0;
+  min-height: 32px;
+}
+
+.search-setting-button[selected] {
+  background-color: var(--arrowpanel-dimmed-further);
+}
+
+.search-setting-button-compact > .button-box > .button-icon {
+  list-style-image: url("chrome://browser/skin/gear.svg");
+  filter: url(chrome://browser/skin/filters.svg#fill);
+  fill: currentColor;
+}
diff --git a/browser/themes/linux/setDesktopBackground.css b/browser/themes/linux/setDesktopBackground.css
new file mode 100644
index 000000000..585284c7b
--- /dev/null
+++ b/browser/themes/linux/setDesktopBackground.css
@@ -0,0 +1,18 @@
+/* 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 url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+@namespace html url("http://www.w3.org/1999/xhtml");
+
+html|canvas#screen {
+  margin: 12px 11px 32px;
+}
+
+#monitor {
+  list-style-image: url("chrome://browser/skin/monitor.png");
+}
+
+#monitor[aspectratio="16:10"] {
+  list-style-image: url("chrome://browser/skin/monitor_16-10.png");
+}
diff --git a/browser/themes/linux/slowStartup-16.png b/browser/themes/linux/slowStartup-16.png
new file mode 100644
index 000000000..834dc0f1c
--- /dev/null
+++ b/browser/themes/linux/slowStartup-16.png
diff --git a/browser/themes/linux/social/services-16.png b/browser/themes/linux/social/services-16.png
new file mode 100644
index 000000000..7001ea1f0
--- /dev/null
+++ b/browser/themes/linux/social/services-16.png
diff --git a/browser/themes/linux/social/services-64.png b/browser/themes/linux/social/services-64.png
new file mode 100644
index 000000000..e787bddc3
--- /dev/null
+++ b/browser/themes/linux/social/services-64.png
diff --git a/browser/themes/linux/social/share-button-active.png b/browser/themes/linux/social/share-button-active.png
new file mode 100644
index 000000000..7df438db0
--- /dev/null
+++ b/browser/themes/linux/social/share-button-active.png
diff --git a/browser/themes/linux/social/share-button.png b/browser/themes/linux/social/share-button.png
new file mode 100644
index 000000000..c5298c143
--- /dev/null
+++ b/browser/themes/linux/social/share-button.png
diff --git a/browser/themes/linux/sync-128.png b/browser/themes/linux/sync-128.png
new file mode 100644
index 000000000..1ea34818c
--- /dev/null
+++ b/browser/themes/linux/sync-128.png
diff --git a/browser/themes/linux/sync-16.png b/browser/themes/linux/sync-16.png
new file mode 100644
index 000000000..0afb1c719
--- /dev/null
+++ b/browser/themes/linux/sync-16.png
diff --git a/browser/themes/linux/sync-32.png b/browser/themes/linux/sync-32.png
new file mode 100644
index 000000000..7a762cb98
--- /dev/null
+++ b/browser/themes/linux/sync-32.png
diff --git a/browser/themes/linux/sync-bg.png b/browser/themes/linux/sync-bg.png
new file mode 100644
index 000000000..893a27d76
--- /dev/null
+++ b/browser/themes/linux/sync-bg.png
diff --git a/browser/themes/linux/sync-horizontalbar.png b/browser/themes/linux/sync-horizontalbar.png
new file mode 100644
index 000000000..824d4691b
--- /dev/null
+++ b/browser/themes/linux/sync-horizontalbar.png
diff --git a/browser/themes/linux/sync-horizontalbar@2x.png b/browser/themes/linux/sync-horizontalbar@2x.png
new file mode 100644
index 000000000..fadb57586
--- /dev/null
+++ b/browser/themes/linux/sync-horizontalbar@2x.png
diff --git a/browser/themes/linux/sync-notification-24.png b/browser/themes/linux/sync-notification-24.png
new file mode 100644
index 000000000..d67eb47ac
--- /dev/null
+++ b/browser/themes/linux/sync-notification-24.png
diff --git a/browser/themes/linux/syncCommon.css b/browser/themes/linux/syncCommon.css
new file mode 100644
index 000000000..1378c9c40
--- /dev/null
+++ b/browser/themes/linux/syncCommon.css
@@ -0,0 +1,49 @@
+/* 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/. */
+
+/* The following are used by both sync/setup.xul and sync/genericChange.xul */
+.status {
+  color: -moz-dialogtext;
+}
+
+.statusIcon {
+  margin-inline-start: 4px;
+  max-height: 16px;
+  max-width: 16px;
+}
+
+.statusIcon[status="active"] {
+  list-style-image: url("chrome://global/skin/icons/loading.png");
+}
+
+.statusIcon[status="error"] {
+  list-style-image: url("moz-icon://stock/gtk-dialog-error?size=menu");
+}
+
+.statusIcon[status="success"] {
+  list-style-image: url("moz-icon://stock/gtk-dialog-info?size=menu");
+}
+
+/* .data is only used by sync/genericChange.xul, but it seems unnecessary to have
+   a separate stylesheet for it. */
+.data {
+  font-size: 90%;
+  font-weight: bold;
+}
+
+dialog#change-dialog {
+  width: 40em;
+}
+
+image#syncIcon {
+  list-style-image: url("chrome://browser/skin/sync-32.png");
+}
+
+#introText {
+  margin-top: 2px;
+}
+
+#feedback {
+  height: 2em;
+}
diff --git a/browser/themes/linux/syncProgress-horizontalbar.png b/browser/themes/linux/syncProgress-horizontalbar.png
new file mode 100644
index 000000000..48cd11055
--- /dev/null
+++ b/browser/themes/linux/syncProgress-horizontalbar.png
diff --git a/browser/themes/linux/syncProgress-horizontalbar@2x.png b/browser/themes/linux/syncProgress-horizontalbar@2x.png
new file mode 100644
index 000000000..e1de4763d
--- /dev/null
+++ b/browser/themes/linux/syncProgress-horizontalbar@2x.png
diff --git a/browser/themes/linux/syncProgress-menuPanel.png b/browser/themes/linux/syncProgress-menuPanel.png
new file mode 100644
index 000000000..6fd6f9c16
--- /dev/null
+++ b/browser/themes/linux/syncProgress-menuPanel.png
diff --git a/browser/themes/linux/syncProgress-menuPanel@2x.png b/browser/themes/linux/syncProgress-menuPanel@2x.png
new file mode 100644
index 000000000..04b2cae00
--- /dev/null
+++ b/browser/themes/linux/syncProgress-menuPanel@2x.png
diff --git a/browser/themes/linux/syncProgress-toolbar-inverted.png b/browser/themes/linux/syncProgress-toolbar-inverted.png
new file mode 100644
index 000000000..4ede4387d
--- /dev/null
+++ b/browser/themes/linux/syncProgress-toolbar-inverted.png
diff --git a/browser/themes/linux/syncProgress-toolbar.png b/browser/themes/linux/syncProgress-toolbar.png
new file mode 100644
index 000000000..49e224f0d
--- /dev/null
+++ b/browser/themes/linux/syncProgress-toolbar.png
diff --git a/browser/themes/linux/syncQuota.css b/browser/themes/linux/syncQuota.css
new file mode 100644
index 000000000..1577de8a3
--- /dev/null
+++ b/browser/themes/linux/syncQuota.css
@@ -0,0 +1,26 @@
+/* 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/. */
+
+#quotaDialog {
+  width: 33em;
+  height: 25em;
+}
+
+treechildren::-moz-tree-checkbox {
+  list-style-image: none;
+}
+treechildren::-moz-tree-checkbox(checked) {
+  list-style-image: url("chrome://global/skin/checkbox/cbox-check.gif");
+}
+treechildren::-moz-tree-checkbox(disabled) {
+  list-style-image: url("chrome://global/skin/checkbox/cbox-check-dis.gif");
+}
+
+#treeCaption {
+  height: 4em;
+}
+
+.captionWarning {
+  font-weight: bold;
+}
diff --git a/browser/themes/linux/syncSetup.css b/browser/themes/linux/syncSetup.css
new file mode 100644
index 000000000..1c79e2f50
--- /dev/null
+++ b/browser/themes/linux/syncSetup.css
@@ -0,0 +1,133 @@
+/* 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/. */
+
+wizard {
+  -moz-appearance: none;
+  width: 55em;
+  height: 45em;
+  padding: 0;
+  background-color: Window;
+}
+
+.wizard-page-box {
+  -moz-appearance: none;
+  padding-left: 0;
+  padding-right: 0;
+  margin: 0;
+}
+
+wizardpage {
+  -moz-box-pack: center;
+  -moz-box-align: center;
+  margin: 0;
+  padding: 0 6em;
+  background-color: Window;
+}
+
+.wizard-header {
+  -moz-appearance: none;
+  border: none;
+  padding: 2em 0 1em 0;
+  text-align: center;
+}
+.wizard-header-label {
+  font-size: 24pt;
+  font-weight: normal;
+}
+
+.wizard-buttons {
+  background-color: rgba(0,0,0,0.1);
+  padding: 1em;
+}
+
+.wizard-buttons-separator {
+  visibility: collapse;
+}
+
+.wizard-header-icon {
+  visibility: collapse;
+}
+
+.accountChoiceButton {
+  font: menu;
+}
+
+.confirm {
+  border: 1px solid black;
+  padding: 1em;
+  border-radius: 5px;
+}
+
+/* Override the text-link style from global.css */
+description > .text-link,
+description > .text-link:focus {
+  margin: 0px;
+  padding: 0px;
+  border: 0px;
+}
+
+
+.success,
+.error {
+  padding: 2px;
+  border-radius: 2px;
+}
+
+.error {
+  background-color: #FF0000 !important;
+  color: #FFFFFF !important;
+}
+
+.success {
+  background-color: #00FF00 !important;
+}
+
+.warning {
+  font-weight: bold;
+  font-size: 100%;
+  color: red;
+}
+
+.mainDesc {
+  font-weight: bold;
+  font-size: 100%;
+}
+
+.normal {
+  font-size: 100%;
+}
+
+.inputColumn {
+  margin-inline-end: 2px
+}
+
+.pin {
+  font-size: 18pt;
+  width: 4em;
+  text-align: center; 
+}
+
+#passphraseHelpSpacer {
+  width: 0.5em;
+}
+
+#pairDeviceThrobber,
+#login-throbber {
+  -moz-box-align: center;
+}
+
+#pairDeviceThrobber > image,
+#login-throbber > image {
+  width: 16px;
+  list-style-image: url("chrome://global/skin/icons/loading.png");
+}
+
+#captchaFeedback {
+  visibility: hidden;
+}
+
+#successPageIcon {
+  /* TODO replace this with a 128px version (bug 591122) */
+  list-style-image: url("chrome://browser/skin/sync-32.png");
+}
diff --git a/browser/themes/linux/syncedtabs/sidebar.css b/browser/themes/linux/syncedtabs/sidebar.css
new file mode 100644
index 000000000..04e00a7d4
--- /dev/null
+++ b/browser/themes/linux/syncedtabs/sidebar.css
@@ -0,0 +1,69 @@
+/* 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/. */
+
+%include ../../shared/syncedtabs/sidebar.inc.css
+
+/* These styles are intended to mimic XUL trees and the XUL search box. */
+
+html {
+  border: 1px solid ThreeDShadow;
+  background-color: -moz-Field;
+  color: -moz-FieldText;
+  box-sizing: border-box;
+}
+
+.item {
+  padding-inline-end: 0;
+}
+
+.item-title {
+  margin: 1px 0 0;
+  margin-inline-end: 6px;
+}
+
+
+.search-box {
+  -moz-appearance: textfield;
+  cursor: text;
+  margin: 2px 4px;
+  border: 2px solid;
+  -moz-border-top-colors: ThreeDShadow ThreeDDarkShadow;
+  -moz-border-right-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-bottom-colors: ThreeDHighlight ThreeDLightShadow;
+  -moz-border-left-colors: ThreeDShadow ThreeDDarkShadow;
+  padding: 2px 2px 3px;
+  padding-inline-start: 4px;
+  background-color: -moz-Field;
+  color: -moz-FieldText;
+}
+
+.textbox-search-clear {
+  background-image: url(moz-icon://stock/gtk-clear?size=menu);
+  background-repeat: no-repeat;
+  width: 16px;
+  height: 16px;
+}
+
+.textbox-search-icon {
+  background-image: url(moz-icon://stock/gtk-find?size=menu);
+  background-repeat: no-repeat;
+  width: 16px;
+  height: 16px;
+  display: block;
+}
+
+.textbox-search-icon[searchbutton]:not([disabled]) ,
+.textbox-search-clear:not([disabled]) {
+  cursor: pointer;
+}
+
+.item.client .item-twisty-container {
+  -moz-appearance: treetwistyopen;
+  margin-top: 3px;
+  margin-left: 2px;
+}
+
+.item.client.closed .item-twisty-container {
+  -moz-appearance: treetwisty;
+}
diff --git a/browser/themes/linux/tabbrowser/alltabs-inverted.png b/browser/themes/linux/tabbrowser/alltabs-inverted.png
new file mode 100644
index 000000000..f3261f1da
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/alltabs-inverted.png
diff --git a/browser/themes/linux/tabbrowser/alltabs.png b/browser/themes/linux/tabbrowser/alltabs.png
new file mode 100644
index 000000000..a7abe7396
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/alltabs.png
diff --git a/browser/themes/linux/tabbrowser/newtab-inverted.svg b/browser/themes/linux/tabbrowser/newtab-inverted.svg
new file mode 100644
index 000000000..2728cda5c
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/newtab-inverted.svg
@@ -0,0 +1,13 @@
+<!-- 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/. -->
+<svg width="16" height="18" xmlns="http://www.w3.org/2000/svg">
+  <g stroke="#666" stroke-width="2" fill="none">
+    <rect x="7" y="3" width="2" height="12" rx="0.25" ry="0.25"/>
+    <rect x="2" y="8" width="12" height="2" rx="0.25" ry="0.25"/>
+  </g>
+  <g fill="#fff">
+    <rect x="7" y="3" width="2" height="12"/>
+    <rect x="2" y="8" width="12" height="2"/>
+  </g>
+</svg>
diff --git a/browser/themes/linux/tabbrowser/newtab.svg b/browser/themes/linux/tabbrowser/newtab.svg
new file mode 100644
index 000000000..40548da4a
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/newtab.svg
@@ -0,0 +1,7 @@
+<!-- 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/. -->
+<svg width="16" height="18" xmlns="http://www.w3.org/2000/svg" fill="#4c4c4c">
+  <rect x="7" y="3" width="2" height="12"/>
+  <rect x="2" y="8" width="12" height="2"/>
+</svg>
diff --git a/browser/themes/linux/tabbrowser/tab-active-middle.png b/browser/themes/linux/tabbrowser/tab-active-middle.png
new file mode 100644
index 000000000..b7e6d6f77
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-active-middle.png
diff --git a/browser/themes/linux/tabbrowser/tab-active-middle@2x.png b/browser/themes/linux/tabbrowser/tab-active-middle@2x.png
new file mode 100644
index 000000000..1e92acbda
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-active-middle@2x.png
diff --git a/browser/themes/linux/tabbrowser/tab-arrow-left-inverted.png b/browser/themes/linux/tabbrowser/tab-arrow-left-inverted.png
new file mode 100644
index 000000000..16cd7a277
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-arrow-left-inverted.png
diff --git a/browser/themes/linux/tabbrowser/tab-arrow-left.png b/browser/themes/linux/tabbrowser/tab-arrow-left.png
new file mode 100644
index 000000000..e0fb348d6
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-arrow-left.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-end.png b/browser/themes/linux/tabbrowser/tab-background-end.png
new file mode 100644
index 000000000..fb353b17e
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-end.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-end@2x.png b/browser/themes/linux/tabbrowser/tab-background-end@2x.png
new file mode 100644
index 000000000..eefb6ac47
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-end@2x.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-middle.png b/browser/themes/linux/tabbrowser/tab-background-middle.png
new file mode 100644
index 000000000..51e066c2e
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-middle.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-middle@2x.png b/browser/themes/linux/tabbrowser/tab-background-middle@2x.png
new file mode 100644
index 000000000..b26cb95de
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-middle@2x.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-start.png b/browser/themes/linux/tabbrowser/tab-background-start.png
new file mode 100644
index 000000000..cf0dc852a
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-start.png
diff --git a/browser/themes/linux/tabbrowser/tab-background-start@2x.png b/browser/themes/linux/tabbrowser/tab-background-start@2x.png
new file mode 100644
index 000000000..bbfc77dd1
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-background-start@2x.png
diff --git a/browser/themes/linux/tabbrowser/tab-stroke-end.png b/browser/themes/linux/tabbrowser/tab-stroke-end.png
new file mode 100644
index 000000000..2aa5711f8
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-stroke-end.png
diff --git a/browser/themes/linux/tabbrowser/tab-stroke-end@2x.png b/browser/themes/linux/tabbrowser/tab-stroke-end@2x.png
new file mode 100644
index 000000000..a87002a83
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-stroke-end@2x.png
diff --git a/browser/themes/linux/tabbrowser/tab-stroke-start.png b/browser/themes/linux/tabbrowser/tab-stroke-start.png
new file mode 100644
index 000000000..4e4e41f63
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-stroke-start.png
diff --git a/browser/themes/linux/tabbrowser/tab-stroke-start@2x.png b/browser/themes/linux/tabbrowser/tab-stroke-start@2x.png
new file mode 100644
index 000000000..13bd6add1
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tab-stroke-start@2x.png
diff --git a/browser/themes/linux/tabbrowser/tabDragIndicator.png b/browser/themes/linux/tabbrowser/tabDragIndicator.png
new file mode 100644
index 000000000..df7d914f8
--- /dev/null
+++ b/browser/themes/linux/tabbrowser/tabDragIndicator.png
diff --git a/browser/themes/linux/webRTC-indicator.css b/browser/themes/linux/webRTC-indicator.css
new file mode 100644
index 000000000..c22f942ec
--- /dev/null
+++ b/browser/themes/linux/webRTC-indicator.css
@@ -0,0 +1,116 @@
+/* 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/. */
+
+window {
+  border: 1px solid #ff9500;
+}
+
+#audioVideoButton,
+#screenShareButton,
+#firefoxButton {
+  height: 29px;
+  margin: 0;
+  -moz-appearance: none;
+  border-style: none;
+}
+
+#firefoxButton {
+  background-image: url("chrome://branding/content/icon48.png");
+  background-repeat: no-repeat;
+  background-size: 22px;
+  background-position: center center;
+  min-width: 29px;
+  background-color: white;
+}
+
+#firefoxButton:hover {
+  background-color: #f2f2f2;
+}
+
+#screenShareButton {
+  background-image: url("webRTC-screen-white-16.png");
+  background-position: center center;
+  background-repeat: no-repeat;
+  background-size: 16px;
+  min-width: 27px;
+  display: none;
+}
+
+window[sharingscreen] > #screenShareButton {
+  display: -moz-box;
+}
+
+#audioVideoButton {
+  display: none;
+  background-repeat: no-repeat;
+}
+
+/* When screen sharing, need to pull in the separator: */
+window[sharingscreen] > #audioVideoButton {
+  margin-right: -1px;
+}
+
+/* Single icon button: */
+window[sharingvideo] > #audioVideoButton,
+window[sharingaudio] > #audioVideoButton {
+  display: -moz-box;
+  background-position: center center;
+  background-size: 16px;
+  min-width: 26px;
+}
+
+window[sharingvideo] > #audioVideoButton {
+  background-image: url("webRTC-camera-white-16.png");
+}
+
+window[sharingaudio] > #audioVideoButton {
+  background-image: url("webRTC-microphone-white-16.png");
+}
+
+/* Multi-icon button: */
+window[sharingaudio][sharingvideo] > #audioVideoButton {
+  background-image: url("webRTC-camera-white-16.png"),
+                    url("webRTC-microphone-white-16.png");
+  background-position: 6px center, 26px center;
+  background-size: 16px, 16px;
+  min-width: 46px;
+}
+
+/* Hover styles */
+#audioVideoButton,
+#screenShareButton {
+  background-color: #ffaa33;
+}
+
+#audioVideoButton:hover,
+#screenShareButton:hover {
+  background-color: #ff9500;
+}
+
+/* Don't show the dropmarker for the type="menu" case */
+#audioVideoButton > .box-inherit > .button-menu-dropmarker,
+#screenShareButton > .box-inherit > .button-menu-dropmarker {
+  display: none;
+}
+
+/* Separator in case of screen sharing + video/audio sharing */
+#shareSeparator {
+  width: 1px;
+  margin: 4px -1px 4px 0;
+  background-color: #FFCA80;
+  /* Separator needs to show above either button when they're hovered: */
+  position: relative;
+  z-index: 1;
+  display: none;
+}
+
+window[sharingscreen][sharingvideo] > #shareSeparator,
+window[sharingscreen][sharingaudio] > #shareSeparator {
+  display: -moz-box;
+}
+
+:-moz-any(#audioVideoButton, #screenShareButton,
+          #firefoxButton):-moz-focusring > .button-box {
+  border: none;
+}