update to 53.0

51 files changed, 1130 insertions, 469 deletions

diff --git a/arc-firefox-theme/chrome/global/about.css b/arc-firefox-theme/chrome/global/about.css
index 25f5299..de37ccd 100644
--- a/arc-firefox-theme/chrome/global/about.css
+++ b/arc-firefox-theme/chrome/global/about.css
@@ -39,6 +39,7 @@ img {
   font-weight: bold;
   color: #909090;
   margin: -24px 0 9px 17px;
+  text-align: left; /* Override direction alignment on RTL to make sure that the version will fit well on the background. bug 1325232 */
 }
 
 ul {
diff --git a/arc-firefox-theme/chrome/global/aboutReader.css b/arc-firefox-theme/chrome/global/aboutReader.css
index 49436de..36945de 100644
--- a/arc-firefox-theme/chrome/global/aboutReader.css
+++ b/arc-firefox-theme/chrome/global/aboutReader.css
@@ -6,19 +6,6 @@ body {
   padding: 64px 51px;
 }
 
-@media print {
-  #container {
-    max-width: 100% !important;
-    font-size: 14px !important;
-    font-family: Georgia, "Times New Roman", serif !important;
-  }
-
-  body {
-    padding-top: 0px;
-    padding-bottom: 0px;
-  }
-}
-
 body.loaded {
   transition: color 0.4s, background-color 0.4s;
 }
diff --git a/arc-firefox-theme/chrome/global/aboutReaderContent.css b/arc-firefox-theme/chrome/global/aboutReaderContent.css
index 633391d..f69c17b 100644
--- a/arc-firefox-theme/chrome/global/aboutReaderContent.css
+++ b/arc-firefox-theme/chrome/global/aboutReaderContent.css
@@ -55,6 +55,7 @@
   figure,
   .wp-caption {
     margin: 0 0 10px 0 !important;
+    padding: 0 !important;
   }
 }
 
diff --git a/arc-firefox-theme/chrome/global/aboutReaderControls.css b/arc-firefox-theme/chrome/global/aboutReaderControls.css
index a624901..1acd81e 100644
--- a/arc-firefox-theme/chrome/global/aboutReaderControls.css
+++ b/arc-firefox-theme/chrome/global/aboutReaderControls.css
@@ -63,11 +63,16 @@
 .header > .credits {
   font-size: 0.9em;
   line-height: 1.48em;
-  margin: 0 0 30px 0;
+  margin: 0 0 10px 0;
   padding: 0;
   font-style: italic;
 }
 
+.header > .meta-data {
+  font-size: 0.65em;
+  margin: 0 0 15px 0;
+}
+
 /*======= Controls toolbar =======*/
 
 .toolbar {
@@ -134,7 +139,7 @@
   border-radius: 4px;
   border: 1px solid #b5b5b5;
   border-bottom-width: 0;
-  box-shadow: 0 1px 12px #666;
+  box-shadow: 0 1px 3px #c1c1c1;
 }
 
 .keep-open .dropdown-popup {
@@ -153,7 +158,7 @@
   position: absolute;
   top: 30px; /* offset arrow from top of popup */
   left: -16px;
-  width: 24px;
+  width: 16px;
   height: 24px;
   background-image: url("chrome://global/skin/reader/RM-Type-Controls-Arrow.svg");
   display: block;
diff --git a/arc-firefox-theme/chrome/global/autocomplete.css b/arc-firefox-theme/chrome/global/autocomplete.css
index 0b4536c..6b31eed 100644
--- a/arc-firefox-theme/chrome/global/autocomplete.css
+++ b/arc-firefox-theme/chrome/global/autocomplete.css
@@ -105,6 +105,7 @@ treechildren.autocomplete-treebody::-moz-tree-cell-text(selected) {
 }
 
 .autocomplete-richlistitem[selected] {
+  background-color: Highlight;
   color: HighlightText;
 }
 
diff --git a/arc-firefox-theme/chrome/global/datetimeinputpickers.css b/arc-firefox-theme/chrome/global/datetimeinputpickers.css
new file mode 100644
index 0000000..bed7be5
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/datetimeinputpickers.css
@@ -0,0 +1,342 @@
+/* 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/. */
+
+:root {
+  --font-size-default: 1.1rem;
+  --spinner-width: 3rem;
+  --spinner-margin-top-bottom: 0.4rem;
+  --spinner-item-height: 2.4rem;
+  --spinner-item-margin-bottom: 0.1rem;
+  --spinner-button-height: 1.2rem;
+  --colon-width: 2rem;
+  --day-period-spacing-width: 1rem;
+  --calendar-width: 23.1rem;
+  --date-picker-item-height: 2.4rem;
+
+  --border: 0.1rem solid #D6D6D6;
+  --border-radius: 0.3rem;
+  --border-active-color: #B1B1B1;
+
+  --font-color: #191919;
+  --fill-color: #EBEBEB;
+
+  --selected-font-color: #FFFFFF;
+  --selected-fill-color: #0996F8;
+
+  --button-font-color: #858585;
+  --button-font-color-hover: #4D4D4D;
+  --button-font-color-active: #191919;
+  --button-fill-color-active: #D4D4D4;
+
+  --weekday-font-color: #6C6C6C;
+  --weekday-outside-font-color: #6C6C6C;
+  --weekend-font-color: #DA4E44;
+  --weekend-outside-font-color: #FF988F;
+
+  --disabled-opacity: 0.2;
+}
+
+html {
+  font-size: 10px;
+}
+
+body {
+  margin: 0;
+  color: var(--font-color);
+  font: message-box;
+  font-size: var(--font-size-default);
+}
+
+button {
+  -moz-appearance: none;
+  background: none;
+  border: none;
+}
+
+.nav {
+  display: flex;
+  width: var(--calendar-width);
+  height: 2.4rem;
+  margin-bottom: 0.8rem;
+  justify-content: space-between;
+}
+
+.nav > button {
+  width: 3rem;
+  height: var(--date-picker-item-height);
+  filter: url("chrome://global/skin/filters.svg#fill");
+  fill: var(--button-font-color);
+}
+
+.nav > button:hover {
+  fill: var(--button-font-color-hover);
+}
+
+.nav > button.active {
+  fill: var(--button-font-color-active);
+}
+
+.nav > button.left {
+  background: url("chrome://global/skin/icons/calendar-arrows.svg#left") no-repeat 50% 50%;
+}
+
+.nav > button.right {
+  background: url("chrome://global/skin/icons/calendar-arrows.svg#right") no-repeat 50% 50%;
+}
+
+.month-year-container {
+  position: absolute;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  top: 0;
+  left: 3rem;
+  width: 17.1rem;
+  height: var(--date-picker-item-height);
+  z-index: 10;
+}
+
+button.month-year {
+  font-size: 1.3rem;
+  border: var(--border);
+  border-radius: 0.3rem;
+  padding: 0.2rem 2.6rem 0.2rem 1.2rem;
+}
+
+button.month-year:hover {
+  background: var(--fill-color);
+}
+
+button.month-year.active {
+  border-color: var(--border-active-color);
+  background: var(--button-fill-color-active);
+}
+
+button.month-year::after {
+  position: absolute;
+  content: "";
+  width: 2.6rem;
+  height: 1.6rem;
+  background: url("chrome://global/skin/icons/spinner-arrows.svg#down") no-repeat 50% 50%;
+  filter: url("chrome://global/skin/filters.svg#fill");
+  fill: var(--button-font-color);
+}
+
+button.month-year.active::after {
+  background: url("chrome://global/skin/icons/spinner-arrows.svg#up") no-repeat 50% 50%;
+}
+
+.month-year-view {
+  position: absolute;
+  z-index: 5;
+  padding-top: 3.2rem;
+  top: 0;
+  left: 0;
+  bottom: 0;
+  width: var(--calendar-width);
+  background: window;
+  opacity: 1;
+  transition: opacity 0.15s;
+}
+
+.month-year-view.hidden {
+  visibility: hidden;
+  opacity: 0;
+}
+
+.month-year-view > .spinner-container {
+  width: 5.5rem;
+  margin: 0 0.5rem;
+}
+
+.month-year-view .spinner {
+  transform: scaleY(1);
+  transform-origin: top;
+  transition: transform 0.15s;
+}
+
+.month-year-view.hidden .spinner {
+  transform: scaleY(0);
+  transition: none;
+}
+
+.month-year-view .spinner > div {
+  transform: scaleY(1);
+  transition: transform 0.15s;
+}
+
+.month-year-view.hidden .spinner > div {
+  transform: scaleY(2.5);
+  transition: none;
+}
+
+.calendar-container {
+  cursor: default;
+  display: flex;
+  flex-direction: column;
+  width: var(--calendar-width);
+}
+
+.week-header {
+  display: flex;
+}
+
+.week-header > div {
+  color: var(--weekday-font-color);
+}
+
+.week-header > div.weekend {
+  color: var(--weekend-font-color);
+}
+
+.days-viewport {
+  height: 15rem;
+  overflow: hidden;
+  position: relative;
+}
+
+.days-view {
+  position: absolute;
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: row;
+}
+
+.week-header > div,
+.days-view > div {
+  align-items: center;
+  display: flex;
+  height: var(--date-picker-item-height);
+  margin: 0.05rem 0.15rem;
+  position: relative;
+  justify-content: center;
+  width: 3rem;
+}
+
+.days-view > div.outside {
+  color: var(--weekday-outside-font-color);
+}
+
+.days-view > div.weekend {
+  color: var(--weekend-font-color);
+}
+
+.days-view > div.weekend.outside {
+  color: var(--weekend-outside-font-color);
+}
+
+#time-picker,
+.month-year-view {
+  display: flex;
+  flex-direction: row;
+  justify-content: center;
+}
+
+.spinner-container {
+  display: flex;
+  flex-direction: column;
+  width: var(--spinner-width);
+}
+
+.spinner-container > button {
+  height: var(--spinner-button-height);
+  filter: url("chrome://global/skin/filters.svg#fill");
+  fill: var(--button-font-color);
+}
+
+.spinner-container > button:hover {
+  fill: var(--button-font-color-hover);
+}
+
+.spinner-container > button.active {
+  fill: var(--button-font-color-active);
+}
+
+.spinner-container > button.up {
+  background: url("chrome://global/skin/icons/spinner-arrows.svg#up") no-repeat 50% 50%;
+}
+
+.spinner-container > button.down {
+  background: url("chrome://global/skin/icons/spinner-arrows.svg#down") no-repeat 50% 50%;
+}
+
+.spinner-container.hide-buttons > button {
+  visibility: hidden;
+}
+
+.spinner-container > .spinner {
+  position: relative;
+  width: 100%;
+  margin: var(--spinner-margin-top-bottom) 0;
+  cursor: default;
+  overflow-y: scroll;
+  scroll-snap-type: mandatory;
+  scroll-snap-points-y: repeat(100%);
+}
+
+.spinner-container > .spinner > div {
+  box-sizing: border-box;
+  position: relative;
+  text-align: center;
+  padding: calc((var(--spinner-item-height) - var(--font-size-default)) / 2) 0;
+  margin-bottom: var(--spinner-item-margin-bottom);
+  height: var(--spinner-item-height);
+  -moz-user-select: none;
+  scroll-snap-coordinate: 0 0;
+}
+
+.spinner-container > .spinner > div:hover::before,
+.calendar-container .days-view > div:hover::before {
+  background: var(--fill-color);
+  border: var(--border);
+  border-radius: var(--border-radius);
+  content: "";
+  position: absolute;
+  top: 0%;
+  bottom: 0%;
+  left: 0%;
+  right: 0%;
+  z-index: -10;
+}
+
+.spinner-container > .spinner:not(.scrolling) > div.selection,
+.calendar-container .days-view > div.selection {
+  color: var(--selected-font-color);
+}
+
+.spinner-container > .spinner > div.selection::before,
+.calendar-container .days-view > div.selection::before {
+  background: var(--selected-fill-color);
+  border: none;
+  border-radius: var(--border-radius);
+  content: "";
+  position: absolute;
+  top: 0%;
+  bottom: 0%;
+  left: 0%;
+  right: 0%;
+  z-index: -10;
+}
+
+.spinner-container > .spinner > div.disabled::before,
+.spinner-container > .spinner.scrolling > div.selection::before,
+.spinner-container > .spinner.scrolling > div:hover::before {
+  display: none;
+}
+
+.spinner-container > .spinner > div.disabled {
+  opacity: var(--disabled-opacity);
+}
+
+.colon {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  width: var(--colon-width);
+  margin-bottom: 0.3rem;
+}
+
+.spacer {
+  width: var(--day-period-spacing-width);
+}
\ No newline at end of file
diff --git a/arc-firefox-theme/chrome/global/datetimepopup.css b/arc-firefox-theme/chrome/global/datetimepopup.css
new file mode 100644
index 0000000..52f6fc7
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/datetimepopup.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/. */
+
+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+
+panel[type="arrow"][side="top"],
+panel[type="arrow"][side="bottom"] {
+  margin-left: 0;
+  margin-right: 0;
+}
diff --git a/arc-firefox-theme/chrome/global/filters.svg b/arc-firefox-theme/chrome/global/filters.svg
new file mode 100644
index 0000000..2d0f219
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/filters.svg
@@ -0,0 +1,17 @@
+<?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/. -->
+<svg xmlns="http://www.w3.org/2000/svg">
+  <filter id="fill">
+    <feComposite in="FillPaint" in2="SourceGraphic" operator="in"/>
+  </filter>
+  <filter id="iconPressed" color-interpolation-filters="sRGB">
+    <!-- Multiply all components with 0.55. -->
+    <feComponentTransfer>
+      <feFuncR type="linear" slope=".55"/>
+      <feFuncG type="linear" slope=".55"/>
+      <feFuncB type="linear" slope=".55"/>
+    </feComponentTransfer>
+  </filter>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/findBar.css b/arc-firefox-theme/chrome/global/findBar.css
index f049114..9bf610b 100644
--- a/arc-firefox-theme/chrome/global/findBar.css
+++ b/arc-firefox-theme/chrome/global/findBar.css
@@ -105,12 +105,20 @@ findbar[noanim] {
 }
 
 .findbar-find-previous {
-  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#glyph-find-previous);
+  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#previous);
   border-inline-end-width: 0;
 }
 
 .findbar-find-next {
-  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#glyph-find-next);
+  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#next);
+}
+
+.findbar-find-previous[disabled] {
+  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#previous-disabled);
+}
+
+.findbar-find-next[disabled] {
+  list-style-image: url(chrome://global/skin/icons/find-arrows.svg#next-disabled);
 }
 
 .findbar-find-previous > .toolbarbutton-icon,
diff --git a/arc-firefox-theme/chrome/global/global.css b/arc-firefox-theme/chrome/global/global.css
index 1f9e7e4..d78a911 100644
--- a/arc-firefox-theme/chrome/global/global.css
+++ b/arc-firefox-theme/chrome/global/global.css
@@ -292,6 +292,20 @@ popupnotificationcontent {
   margin-top: .5em;
 }
 
+.popup-notification-panel > .panel-arrowcontainer > .panel-arrowcontent {
+  /* In order to display the action buttons near the edge of the arrow panel we
+   * have to reset its default padding and specify the padding in the individual
+   * "popupnotification" elements instead. To keep the rounded borders of the
+   * panel, we also have to ensure the contents are clipped to the border box
+   * by hiding the overflow, and we have to override the "display" property so
+   * that the height of the contents is computed correctly in that case. */
+  padding: 0;
+  overflow: hidden;
+  display: flex;
+  /* Make multiple popupnotifications stack vertically. */
+  flex-direction: column;
+}
+
 /* :::::: autoscroll popup ::::: */
 
 .autoscroller {
diff --git a/arc-firefox-theme/chrome/global/icons/calendar-arrows.svg b/arc-firefox-theme/chrome/global/icons/calendar-arrows.svg
new file mode 100644
index 0000000..858676f
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/icons/calendar-arrows.svg
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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 xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 14 14">
+  <style>
+    path:not(:target) {
+      display: none;
+    }
+  </style>
+  <path id="right" d="M4.8 14L3 12.3 8.5 7 3 1.7 4.8 0 12 7"/>
+  <path id="left" d="M9.2 0L11 1.7 5.5 7 11 12.3 9.2 14 2 7"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/icons/find-arrows.svg b/arc-firefox-theme/chrome/global/icons/find-arrows.svg
index 608c0a7..d6c59c7 100644
--- a/arc-firefox-theme/chrome/global/icons/find-arrows.svg
+++ b/arc-firefox-theme/chrome/global/icons/find-arrows.svg
@@ -2,15 +2,26 @@
 <!-- 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/. -->
-<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="12" height="12" viewBox="0 0 12 12">
   <style>
-    path:not(:target) {
-      display: none;
-    }
-    path {
+    #previous,
+    #next {
       fill: -moz-dialogtext;
     }
+    #previous-disabled,
+    #next-disabled {
+      fill: GrayText;
+    }
+    use:not(:target) {
+      display: none;
+    }
   </style>
-  <path id="glyph-find-previous" d="M5.407,1.5l-5,4.599L1.65,7.283l3.757-3.387l3.705,3.385l1.296-1.158L5.407,1.5z"/>
-  <path id="glyph-find-next" d="M5.547,8.255L0.538,3.53l1.239-1.265l3.77,3.641l3.719-3.641l1.264,1.188L5.547,8.255z"/>
+  <defs>
+    <path id="path-previous" d="M5.407,1.5l-5,4.599L1.65,7.283l3.757-3.387l3.705,3.385l1.296-1.158L5.407,1.5z"/>
+    <path id="path-next" d="M5.547,8.255L0.538,3.53l1.239-1.265l3.77,3.641l3.719-3.641l1.264,1.188L5.547,8.255z"/>
+  </defs>
+  <use xlink:href="#path-previous" id="previous"/>
+  <use xlink:href="#path-next" id="next"/>
+  <use xlink:href="#path-previous" id="previous-disabled"/>
+  <use xlink:href="#path-next" id="next-disabled"/>
 </svg>
diff --git a/arc-firefox-theme/chrome/global/icons/menubutton-dropmarker.svg b/arc-firefox-theme/chrome/global/icons/menubutton-dropmarker.svg
new file mode 100644
index 0000000..76af113
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/icons/menubutton-dropmarker.svg
@@ -0,0 +1,8 @@
+<?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/. -->
+<svg xmlns="http://www.w3.org/2000/svg"
+     width="16" height="16" viewBox="0 0 16 16">
+  <path d="m 2,6 6,6 6,-6 -1.5,-1.5 -4.5,4.5 -4.5,-4.5 z" />
+</svg>
diff --git a/arc-firefox-theme/chrome/global/icons/spinner-arrows.svg b/arc-firefox-theme/chrome/global/icons/spinner-arrows.svg
new file mode 100644
index 0000000..a8ba72d
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/icons/spinner-arrows.svg
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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 xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6">
+  <style>
+    path:not(:target) {
+      display: none;
+    }
+  </style>
+  <path id="down" d="M0 1l1-1 4 4 4-4 1 1-5 5"/>
+  <path id="up" d="M0 5l1 1 4-4 4 4 1-1-5-5"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/in-content/common.css b/arc-firefox-theme/chrome/global/in-content/common.css
index 05c91b4..2f1bfac 100644
--- a/arc-firefox-theme/chrome/global/in-content/common.css
+++ b/arc-firefox-theme/chrome/global/in-content/common.css
@@ -109,7 +109,7 @@ xul|groupbox {
   font-size: 1.25rem;
 }
 
-xul|groupbox xul|label:not(.menu-accel):not(.menu-text):not(.indent),
+xul|groupbox xul|label:not(.menu-accel):not(.menu-text):not(.indent):not(.learnMore),
 xul|groupbox xul|description {
   /* !important needed to override toolkit !important rule */
   margin-inline-start: 0 !important;
diff --git a/arc-firefox-theme/chrome/global/in-content/info-pages.css b/arc-firefox-theme/chrome/global/in-content/info-pages.css
index b75b06a..3de0ce5 100644
--- a/arc-firefox-theme/chrome/global/in-content/info-pages.css
+++ b/arc-firefox-theme/chrome/global/in-content/info-pages.css
@@ -37,6 +37,7 @@ body {
   font-size: 2.5em;
 }
 
+.title:-moz-locale-dir(rtl),
 .title:dir(rtl) {
   background-position: right 0;
 }
diff --git a/arc-firefox-theme/chrome/global/media/TopLevelVideoDocument.css b/arc-firefox-theme/chrome/global/media/TopLevelVideoDocument.css
index 760cdcd..2d857ce 100644
--- a/arc-firefox-theme/chrome/global/media/TopLevelVideoDocument.css
+++ b/arc-firefox-theme/chrome/global/media/TopLevelVideoDocument.css
@@ -8,5 +8,5 @@ body {
 }
 
 video {
-  box-shadow: 0 0 15px #000;
+  box-shadow: 0 0 5px rgba(0,0,0,0.6);
 }
diff --git a/arc-firefox-theme/chrome/global/media/closeCaptionButton.png b/arc-firefox-theme/chrome/global/media/closeCaptionButton.png
deleted file mode 100644
index 469310f..0000000
--- a/arc-firefox-theme/chrome/global/media/closeCaptionButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/closeCaptionButton@2x.png b/arc-firefox-theme/chrome/global/media/closeCaptionButton@2x.png
deleted file mode 100644
index 0335078..0000000
--- a/arc-firefox-theme/chrome/global/media/closeCaptionButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/closedCaptionButton.svg b/arc-firefox-theme/chrome/global/media/closedCaptionButton.svg
new file mode 100644
index 0000000..0c55071
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/media/closedCaptionButton.svg
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="18px" height="18px" viewBox="0 0 18 18">
+  <style>
+    use:not(:target) {
+      display: none;
+    }
+    use {
+      fill: #ffffff;
+    }
+    use[id$="-hover"] {
+      fill: #48a0f7;
+    }
+    use[id$="-active"] {
+      fill: #2d89e6;
+    }
+    use[id$="-focus"] {
+      fill: #48a0f7;
+    }
+    use[id$="-disabled"] {
+      fill: #ffffff;
+    }
+  </style>
+  <symbol id="cc-off-shape">
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M16.531,16.107H5.267l1.982-2H15c0.6,0,1-0.4,1-1V5.274
+      l1.946-1.964C17.963,3.399,18,3.483,18,3.576v11.031C18,15.407,17.331,16.107,16.531,16.107z M14.016,8.506h-1.218l1.005-1.014
+      C13.913,7.789,13.984,8.128,14.016,8.506z M11.786,12.361c-0.828,0-1.476-0.326-1.913-0.902l1.09-1.101
+      c0.136,0.323,0.374,0.541,0.796,0.541c0.514,0,0.695-0.44,0.756-1.014h1.535C13.908,11.43,13.071,12.361,11.786,12.361z
+       M1.496,16.106C0.697,16.104,0,15.406,0,14.607V3.576c0-0.8,0.7-1.5,1.5-1.5h12.846L16.299,0l1.316,1.283L2.615,17.13L1.496,16.106
+      z M3,4.107c-0.6,0-1,0.4-1,1v8c0,0.6,0.4,1,1,1h0.029l2.031-2.16c-0.757-0.503-1.191-1.457-1.191-2.744
+      c0-1.936,1.069-3.14,2.428-3.14c1.357,0,2.136,0.76,2.361,2.059l3.777-4.016H3z M8.298,8.506H7.355
+      c-0.047-0.623-0.49-1.23-0.99-1.23c-0.561,0-1.337,0.84-1.337,1.995c0,0.674,0.381,1.427,0.95,1.702L8.298,8.506z"/>
+  </symbol>
+
+  <symbol id="cc-shape">
+    <path d="M16.531,1.984H1.5c-0.8,0-1.5,0.7-1.5,1.5v11.031c0,0.8,0.7,1.5,1.5,1.5h15.031
+      c0.8,0,1.469-0.7,1.469-1.5V3.484C18,2.684,17.331,1.984,16.531,1.984z M16,13.016c0,0.6-0.4,1-1,1H3c-0.6,0-1-0.4-1-1v-8
+      c0-0.6,0.4-1,1-1h12c0.6,0,1,0.4,1,1V13.016z M6.426,10.807c-0.811,0-0.96-0.789-0.96-1.628c0-1.155,0.338-1.745,0.899-1.745
+      c0.5,0,0.818,0.357,0.866,0.98h1.484C8.585,6.877,7.785,5.972,6.297,5.972c-1.359,0-2.428,1.205-2.428,3.14
+      c0,1.944,0.974,3.157,2.583,3.157c1.285,0,2.153-0.93,2.295-2.476H7.244C7.183,10.367,6.94,10.807,6.426,10.807z M11.759,10.807
+      c-0.811,0-0.96-0.789-0.96-1.628c0-1.155,0.338-1.745,0.899-1.745c0.5,0,0.756,0.357,0.803,0.98h1.515
+      c-0.129-1.537-0.898-2.443-2.385-2.443c-1.359,0-2.396,1.205-2.396,3.14c0,1.944,0.943,3.157,2.552,3.157
+      c1.285,0,2.122-0.93,2.264-2.476h-1.535C12.454,10.367,12.273,10.807,11.759,10.807z"/>
+  </symbol>
+  <use id="cc" xlink:href="#cc-shape"/>
+  <use id="cc-hover" xlink:href="#cc-shape"/>
+  <use id="cc-active" xlink:href="#cc-shape"/>
+  <use id="cc-focus" xlink:href="#cc-shape"/>
+  <use id="cc-disabled" xlink:href="#cc-shape"/>
+
+  <use id="cc-off" xlink:href="#cc-off-shape"/>
+  <use id="cc-off-hover" xlink:href="#cc-off-shape"/>
+  <use id="cc-off-active" xlink:href="#cc-off-shape"/>
+  <use id="cc-off-focus" xlink:href="#cc-off-shape"/>
+  <use id="cc-off-disabled" xlink:href="#cc-off-shape"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/media/error.png b/arc-firefox-theme/chrome/global/media/error.png
index 58e3728..362a293 100644
--- a/arc-firefox-theme/chrome/global/media/error.png
+++ b/arc-firefox-theme/chrome/global/media/error.png
diff --git a/arc-firefox-theme/chrome/global/media/fullscreenButton.png b/arc-firefox-theme/chrome/global/media/fullscreenButton.png
deleted file mode 100644
index ffbc3d5..0000000
--- a/arc-firefox-theme/chrome/global/media/fullscreenButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/fullscreenButton.svg b/arc-firefox-theme/chrome/global/media/fullscreenButton.svg
new file mode 100644
index 0000000..0bf3ec2
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/media/fullscreenButton.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="18px" height="18px" viewBox="0 0 18 18">
+  <style>
+    use:not(:target) {
+      display: none;
+    }
+    use {
+      fill: #ffffff;
+    }
+    use[id$="-hover"] {
+      fill: #48a0f7;
+    }
+    use[id$="-active"] {
+      fill: #2d89e6;
+    }
+    use[id$="-focus"] {
+      fill: #48a0f7;
+    }
+    use[id$="-disabled"] {
+      fill: #ffffff;
+    }
+  </style>
+  <symbol id="fullscreen-shape">
+    <path d="M6.728,10.188l-3.235,3.094l0.017-2.267l-1.513-0.016l0,5l4.987-0.008l0.011-1.537l-2.281-0.022
+  l3.097-3.158L6.728,10.188z M14.453,11.004l-0.022,2.281l-3.158-3.097l-1.086,1.083l3.094,3.235l-2.267-0.017l-0.016,1.514l5,0
+  l-0.008-4.988L14.453,11.004z M11.015,2.01l-0.011,1.537l2.281,0.022l-3.097,3.158l1.083,1.086l3.235-3.094L14.49,6.986
+  l1.513,0.016v-5L11.015,2.01z M6.986,3.511l0.016-1.514l-5,0L2.01,6.985l1.537,0.011l0.022-2.281l3.158,3.097l1.086-1.083
+  L4.718,3.494L6.986,3.511z"/>
+  </symbol>
+  <symbol id="unfullscreen-shape">
+    <path d="M2.047,11.135l-0.011,1.537l2.281,0.022L1.22,15.851l1.083,1.086l3.235-3.094l-0.017,2.268l1.513,0.016
+  l0-5L2.047,11.135z M13.781,12.587l2.267,0.017l0.016-1.514l-5,0l0.008,4.988l1.537,0.011l0.022-2.281l3.158,3.097l1.086-1.083
+  L13.781,12.587z M16.058,5.578l-2.281-0.021l3.097-3.158l-1.083-1.086l-3.235,3.094l0.017-2.267L11.06,2.123v5l4.988-0.008
+  L16.058,5.578z M5.516,2.098L5.494,4.379L2.336,1.283L1.25,2.365L4.344,5.6L2.077,5.583L2.06,7.097l5,0L7.053,2.109L5.516,2.098z"/>
+  </symbol>
+  <use id="fullscreen" xlink:href="#fullscreen-shape"/>
+  <use id="fullscreen-hover" xlink:href="#fullscreen-shape"/>
+  <use id="fullscreen-active" xlink:href="#fullscreen-shape"/>
+  <use id="fullscreen-focus" xlink:href="#fullscreen-shape"/>
+  <use id="fullscreen-disabled" xlink:href="#fullscreen-shape"/>
+
+  <use id="unfullscreen" xlink:href="#unfullscreen-shape"/>
+  <use id="unfullscreen-hover" xlink:href="#unfullscreen-shape"/>
+  <use id="unfullscreen-active" xlink:href="#unfullscreen-shape"/>
+  <use id="unfullscreen-focus" xlink:href="#unfullscreen-shape"/>
+  <use id="unfullscreen-disabled" xlink:href="#unfullscreen-shape"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/media/fullscreenButton@2x.png b/arc-firefox-theme/chrome/global/media/fullscreenButton@2x.png
deleted file mode 100644
index b09ebbd..0000000
--- a/arc-firefox-theme/chrome/global/media/fullscreenButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/muteButton.png b/arc-firefox-theme/chrome/global/media/muteButton.png
deleted file mode 100644
index 8944807..0000000
--- a/arc-firefox-theme/chrome/global/media/muteButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/muteButton.svg b/arc-firefox-theme/chrome/global/media/muteButton.svg
new file mode 100644
index 0000000..779957c
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/media/muteButton.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="18px" height="18px" viewBox="0 0 18 18">
+  <style>
+    use:not(:target) {
+      display: none;
+    }
+    use {
+      fill: #ffffff;
+    }
+    use[id$="-hover"] {
+      fill: #48a0f7;
+    }
+    use[id$="-active"] {
+      fill: #2d89e6;
+    }
+    use[id$="-focus"] {
+      fill: #48a0f7;
+    }
+    use[id$="-disabled"] {
+      fill: #ffffff;
+    }
+  </style>
+  <symbol id="unmute-shape">
+    <path d="M3.52,5.367c-1.332,0-2.422,1.09-2.422,2.422v2.422c0,1.332,1.09,2.422,2.422,2.422h1.516l4.102,3.633
+    V1.735L5.035,5.367H3.52z M12.059,9c0-0.727-0.484-1.211-1.211-1.211v2.422C11.574,10.211,12.059,9.727,12.059,9z M14.48,9
+    c0-1.695-1.211-3.148-2.785-3.512l-0.363,1.09C12.422,6.82,13.27,7.789,13.27,9c0,1.211-0.848,2.18-1.938,2.422l0.484,1.09
+    C13.27,12.148,14.48,10.695,14.48,9z M12.543,3.188l-0.484,1.09C14.238,4.883,15.691,6.82,15.691,9c0,2.18-1.453,4.117-3.512,4.601
+    l0.484,1.09c2.422-0.605,4.238-2.906,4.238-5.691C16.902,6.215,15.086,3.914,12.543,3.188z"/>
+  </symbol>
+  <symbol id="mute-shape">
+    <path d="M3.52,5.367c-1.332,0-2.422,1.09-2.422,2.422v2.422c0,1.332,1.09,2.422,2.422,2.422h1.516l4.102,3.633
+      V1.735L5.035,5.367H3.52z"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M12.155,12.066l-1.138-1.138l4.872-4.872l1.138,1.138
+      L12.155,12.066z"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M10.998,7.204l1.138-1.138l4.872,4.872l-1.138,1.138L10.998,7.204
+		z"/>
+  </symbol>
+  <symbol id="noaudio-shape">
+	  <path d="M14.901,3.571l-4.412,3.422V1.919L6.286,5.46H4.869c-1.298,0-2.36,1.062-2.36,2.36v2.36
+		c0,1.062,0.708,1.888,1.652,2.242l-2.242,1.77l1.18,1.416L16.081,4.987L14.901,3.571z M10.489,16.081V11.36l-2.669,2.36
+		L10.489,16.081z"/>
+  </symbol>
+  <use id="unmute" xlink:href="#unmute-shape"/>
+  <use id="unmute-hover" xlink:href="#unmute-shape"/>
+  <use id="unmute-active" xlink:href="#unmute-shape"/>
+  <use id="unmute-focus" xlink:href="#unmute-shape"/>
+  <use id="unmute-disabled" xlink:href="#unmute-shape"/>
+
+  <use id="mute" xlink:href="#mute-shape"/>
+  <use id="mute-hover" xlink:href="#mute-shape"/>
+  <use id="mute-active" xlink:href="#mute-shape"/>
+  <use id="mute-focus" xlink:href="#mute-shape"/>
+  <use id="mute-disabled" xlink:href="#mute-shape"/>
+
+  <use id="noaudio" xlink:href="#noaudio-shape"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/media/muteButton@2x.png b/arc-firefox-theme/chrome/global/media/muteButton@2x.png
deleted file mode 100644
index b2cd21c..0000000
--- a/arc-firefox-theme/chrome/global/media/muteButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/noAudio.png b/arc-firefox-theme/chrome/global/media/noAudio.png
deleted file mode 100644
index 3db8c97..0000000
--- a/arc-firefox-theme/chrome/global/media/noAudio.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/noAudio@2x.png b/arc-firefox-theme/chrome/global/media/noAudio@2x.png
deleted file mode 100644
index 7de728b..0000000
--- a/arc-firefox-theme/chrome/global/media/noAudio@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/pauseButton.png b/arc-firefox-theme/chrome/global/media/pauseButton.png
deleted file mode 100644
index 944098c..0000000
--- a/arc-firefox-theme/chrome/global/media/pauseButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/pauseButton.svg b/arc-firefox-theme/chrome/global/media/pauseButton.svg
new file mode 100644
index 0000000..8d56b96
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/media/pauseButton.svg
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="18px" height="18px" viewBox="0 0 18 18">
+  <style>
+    use:not(:target) {
+      display: none;
+    }
+    use {
+      fill: #ffffff;
+    }
+    use[id$="-hover"] {
+      fill: #48a0f7;
+    }
+    use[id$="-active"] {
+      fill: #2d89e6;
+    }
+    use[id$="-focus"] {
+      fill: #48a0f7;
+    }
+    use[id$="-disabled"] {
+      fill: #ffffff;
+    }
+  </style>
+
+
+  <symbol id="pause-shape">
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M6.002,1.953C5.172,1.953,4.5,2.626,4.5,3.455v11.08
+        c0,0.83,0.672,1.502,1.502,1.502c0.829,0,1.502-0.672,1.502-1.502V3.455C7.504,2.626,6.831,1.953,6.002,1.953z M12,1.953
+        c-0.828,0-1.5,0.672-1.5,1.5v11.094c0,0.828,0.672,1.5,1.5,1.5s1.5-0.672,1.5-1.5V3.453C13.5,2.625,12.828,1.953,12,1.953z"/>
+  </symbol>
+
+  <use id="pause" xlink:href="#pause-shape"/>
+  <use id="pause-hover" xlink:href="#pause-shape"/>
+  <use id="pause-active" xlink:href="#pause-shape"/>
+  <use id="pause-focus" xlink:href="#pause-shape"/>
+  <use id="pause-disalbed" xlink:href="#pause-shape"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/media/pauseButton@2x.png b/arc-firefox-theme/chrome/global/media/pauseButton@2x.png
deleted file mode 100644
index df22919..0000000
--- a/arc-firefox-theme/chrome/global/media/pauseButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/playButton.png b/arc-firefox-theme/chrome/global/media/playButton.png
deleted file mode 100644
index 11e2731..0000000
--- a/arc-firefox-theme/chrome/global/media/playButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/playButton.svg b/arc-firefox-theme/chrome/global/media/playButton.svg
new file mode 100644
index 0000000..dc20c61
--- /dev/null
+++ b/arc-firefox-theme/chrome/global/media/playButton.svg
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="18px" height="18px" viewBox="0 0 18 18">
+  <style>
+    use:not(:target) {
+      display: none;
+    }
+    use {
+      fill: #ffffff;
+    }
+    use[id$="-hover"] {
+      fill: #48a0f7;
+    }
+    use[id$="-active"] {
+      fill: #2d89e6;
+    }
+    use[id$="-focus"] {
+      fill: #48a0f7;
+    }
+    use[id$="-disabled"] {
+      fill: #ffffff;
+    }
+    use[id$="-clicktoplay"] {
+      fill: #000000;
+    }
+  </style>
+
+  <symbol id="play-shape">
+    <path d="M3.243,15.155c0,0.845,0.593,1.157,1.317,0.707l9.659-6.041c0.727-0.453,0.722-1.193,0-1.645L4.556,2.137
+    C3.827,1.682,3.237,2.014,3.237,2.844v12.312H3.243z"/>
+  </symbol>
+
+  <use id="play" xlink:href="#play-shape"/>
+  <use id="play-hover" xlink:href="#play-shape"/>
+  <use id="play-active" xlink:href="#play-shape"/>
+  <use id="play-focus" xlink:href="#play-shape"/>
+  <use id="play-clicktoplay" xlink:href="#play-shape"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/media/playButton@2x.png b/arc-firefox-theme/chrome/global/media/playButton@2x.png
deleted file mode 100644
index fb20075..0000000
--- a/arc-firefox-theme/chrome/global/media/playButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/scrubberThumb.png b/arc-firefox-theme/chrome/global/media/scrubberThumb.png
deleted file mode 100644
index f159627..0000000
--- a/arc-firefox-theme/chrome/global/media/scrubberThumb.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/scrubberThumb@2x.png b/arc-firefox-theme/chrome/global/media/scrubberThumb@2x.png
deleted file mode 100644
index f8790f4..0000000
--- a/arc-firefox-theme/chrome/global/media/scrubberThumb@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/scrubberThumbWide.png b/arc-firefox-theme/chrome/global/media/scrubberThumbWide.png
deleted file mode 100644
index 96d2ed7..0000000
--- a/arc-firefox-theme/chrome/global/media/scrubberThumbWide.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/scrubberThumbWide@2x.png b/arc-firefox-theme/chrome/global/media/scrubberThumbWide@2x.png
deleted file mode 100644
index 52c9d72..0000000
--- a/arc-firefox-theme/chrome/global/media/scrubberThumbWide@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/unmuteButton.png b/arc-firefox-theme/chrome/global/media/unmuteButton.png
deleted file mode 100644
index 5b76e2f..0000000
--- a/arc-firefox-theme/chrome/global/media/unmuteButton.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/unmuteButton@2x.png b/arc-firefox-theme/chrome/global/media/unmuteButton@2x.png
deleted file mode 100644
index 86f2185..0000000
--- a/arc-firefox-theme/chrome/global/media/unmuteButton@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/videocontrols.css b/arc-firefox-theme/chrome/global/media/videocontrols.css
index 6907620..03a050e 100644
--- a/arc-firefox-theme/chrome/global/media/videocontrols.css
+++ b/arc-firefox-theme/chrome/global/media/videocontrols.css
@@ -2,271 +2,369 @@
  * 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");
+@namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+@namespace url("http://www.w3.org/1999/xhtml");
+
+video > xul|videocontrols,
+audio > xul|videocontrols {
+  writing-mode: horizontal-tb;
+  width: 100%;
+  height: 100%;
+  display: inline-block;
+}
+
+.controlsContainer [hidden="true"],
+.controlBar[hidden] {
+  display: none;
+}
+
+.controlBar[size="hidden"] {
+  display: none;
+}
+
+.controlsSpacer[hideCursor] {
+  cursor: none;
+}
+
+.controlsContainer,
+.progressContainer {
+  position: relative;
+  height: 100%;
+}
+
+.stackItem {
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  height: 100%;
+}
+
+.statusOverlay {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  background-color: rgb(80,80,80);
+}
+
+.controlsOverlay {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  position: relative;
+}
+
+.controlsSpacerStack {
+  display: flex;
+  flex-direction: column;
+  flex-grow: 1;
+  justify-content: center;
+  align-items: center;
+}
+
+.controlsSpacer {
+  background-color: rgba(255,255,255,.4);
+}
 
 .controlBar {
-  height: 28px;
-  background-color: rgba(35,31,32,.74);
+  position: relative;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  overflow: hidden;
+  height: 40px;
+  padding: 0 9px;
+  background-color: rgba(26,26,26,.8);
 }
 
 .playButton,
 .muteButton,
 .closedCaptionButton,
 .fullscreenButton {
+  height: 100%;
+  min-height: 30px;
+  min-width: 30px;
+  padding: 6px;
+  border: 0;
+  margin: 0;
   background-color: transparent;
   background-repeat: no-repeat;
   background-position: center;
-  -moz-appearance: none;   /* Remove the native button appearance and styling */
-  margin: 0;
-  padding: 0;
-  min-height: 28px;
-  min-width: 28px;
-  border: none;
-  opacity: 0.7;
+  background-origin: content-box;
+  background-clip: content-box;
 }
 
-.playButton:hover,
-.muteButton:hover,
-.closedCaptionButton:hover,
-.fullscreenButton:hover {
-  opacity: 1;
+.playButton {
+  background-image: url(chrome://global/skin/media/pauseButton.svg#pause);
 }
-
-.playButton:hover:active,
-.muteButton:hover:active,
-.closedCaptionButton:hover:active,
-.fullscreenButton:hover:active {
-  opacity: 0.4;
+.playButton:hover {
+  background-image: url(chrome://global/skin/media/pauseButton.svg#pause-hover);
 }
-
-.playButton {
-  background-image: url(chrome://global/skin/media/pauseButton.png);
-  margin-right: -22px; /* 1/2 of scrubber thumb width, for overhang. */
-  position: relative; /* Trick to work around negative margin interfering with clicking on the button. */
+.playButton:hover:active {
+  background-image: url(chrome://global/skin/media/pauseButton.svg#pause-active);
 }
-
 .playButton[paused] {
-  background-image: url(chrome://global/skin/media/playButton.png);
+  background-image: url(chrome://global/skin/media/playButton.svg#play);
+}
+.playButton[paused]:hover {
+  background-image: url(chrome://global/skin/media/playButton.svg#play-hover);
+}
+.playButton[paused]:hover:active {
+  background-image: url(chrome://global/skin/media/playButton.svg#play-active);
 }
 
 .muteButton {
-  background-image: url(chrome://global/skin/media/muteButton.png);
-  min-width: 33px;
+  background-image: url(chrome://global/skin/media/muteButton.svg#unmute);
+}
+.muteButton:hover {
+  background-image: url(chrome://global/skin/media/muteButton.svg#unmute-hover);
+}
+.muteButton:hover:active {
+  background-image: url(chrome://global/skin/media/muteButton.svg#unmute-active);
 }
 .muteButton[muted] {
-  background-image: url(chrome://global/skin/media/unmuteButton.png);
+  background-image: url(chrome://global/skin/media/muteButton.svg#mute);
 }
-
-.muteButton[noAudio] {
-  background-image: url(chrome://global/skin/media/noAudio.png);
+.muteButton[muted]:hover {
+  background-image: url(chrome://global/skin/media/muteButton.svg#mute-hover);
+}
+.muteButton[muted]:hover:active {
+  background-image: url(chrome://global/skin/media/muteButton.svg#mute-active);
+}
+.muteButton[noAudio],
+.muteButton[noAudio]:hover,
+.muteButton[noAudio]:hover:active {
+  background-image: url(chrome://global/skin/media/muteButton.svg#noaudio);
 }
-
 .muteButton[noAudio] + .volumeStack {
   display: none;
 }
 
 .closedCaptionButton {
-  background-image: url(chrome://global/skin/media/closeCaptionButton.png);
-  background-position: 4px;
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc-off);
+}
+.closedCaptionButton:hover {
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc-off-hover);
+}
+.closedCaptionButton:hover:active {
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc-off-active);
 }
-
 .closedCaptionButton[enabled] {
-  opacity: 1;
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc);
 }
-
-.closedCaptionButton[hidden] {
-  display: none;
+.closedCaptionButton[enabled]:hover {
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc-hover);
+}
+.closedCaptionButton[enabled]:hover:active {
+  background-image: url(chrome://global/skin/media/closedCaptionButton.svg#cc-active);
 }
 
 .fullscreenButton {
-  background-image: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton.png"), 0, 16, 16, 0);
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#fullscreen);
+}
+.fullscreenButton:hover {
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#fullscreen-hover);
+}
+.fullscreenButton:hover:active {
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#fullscreen-active);
 }
-
 .fullscreenButton[fullscreened] {
-  background-image: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton.png"), 0, 32, 16, 16);
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#unfullscreen);
+}
+.fullscreenButton[fullscreened]:hover {
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#unfullscreen-hover);
+}
+.fullscreenButton[fullscreened]:hover:active {
+  background-image: url(chrome://global/skin/media/fullscreenButton.svg#unfullscreen-active);
 }
 
-.volumeControl {
-  width: 32px;
-  opacity: 0;
+.controlBarSpacer {
+  flex-grow: 1;
 }
 
-.volumeBackground,
-.volumeForeground {
-  background-repeat: no-repeat;
-  background-position: center;
-  width: 32px;
+.volumeControl::-moz-range-thumb,
+.scrubber::-moz-range-thumb {
+  height: 13px;
+  width: 13px;
+  border: none;
+  border-radius: 50%;
+  background-color: #ffffff;
+  filter: drop-shadow(0px 0px 2px rgba(0,0,0,0.65));
 }
 
-.volumeBackground {
-  background-image: url(chrome://global/skin/media/volume-empty.png);
+.volumeControl::-moz-focus-outer,
+.scrubber::-moz-focus-outer {
+  border: 0;
 }
 
-.volumeForeground {
-  background-image: url(chrome://global/skin/media/volume-full.png);
-  background-clip: content-box;
+.progressBackgroundBar {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
 }
 
-.textTrackList {
-  display: -moz-box;
-  -moz-appearance: none;
-  -moz-box-pack: end;
-  -moz-box-align: end;
-  padding: 0;
+.progressStack {
+  position: relative;
+  width: 100%;
+  height: 5px;
 }
 
-.textTrackList[hidden] {
-  display: none;
+.scrubberStack {
+  min-width: 48px;
+  flex-basis: 48px;
+  flex-grow: 2;
+  flex-shrink: 0;
+  margin: 0 9px;
 }
 
-.textTrackList > html|*.textTrackItem {
-  -moz-appearance: none;
-  -moz-box-align: start;
-  text-align: start;
-  overflow: hidden;
+.volumeStack {
+  max-width: 60px;
+  min-width: 48px;
+  flex-grow: 1;
+  flex-shrink: 0;
+  margin-right: 6px;
+  margin-left: 4px;
+}
+
+.bufferBar,
+.progressBar,
+.scrubber,
+.volumeBackground,
+.volumeControl {
+  bottom: 0;
+  left: 0;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  padding: 0;
+  border: 0;
+  border-radius: 2.5px;
   margin: 0;
-  padding: 2px 10px;
-  -moz-margin-end: 10px;
-  border: none;
-  color: rgba(255,255,255,.5);
-  background-color: rgba(35,31,32,.74);
-  white-space: nowrap;
+  background: none;
+  background-color: transparent;
 }
 
-.textTrackList > html|*.textTrackItem[on] {
-  color: white;
-  background-color: black;
+.bufferBar,
+.volumeBackground {
+  background-color: rgba(0,0,0,0.7);
 }
 
-.textTrackList > html|*.textTrackItem:hover {
-  background-color: rgba(0,0,0,.55);
+.bufferBar::-moz-progress-bar,
+.progressBar::-moz-progress-bar,
+.volumeBackground::-moz-meter-bar {
+  height: 100%;
+  padding: 0;
+  margin: 0;
+  border: 0;
+  border-radius: 2.5px;
+  background: none;
 }
 
-.controlBar[fullscreen-unavailable] {
-  /* This value is duplicated in the videocontrols.xml adjustControlSize function. */
-  padding-inline-end: 8px;
+.scrubber:hover::-moz-range-thumb,
+.volumeControl:hover::-moz-range-thumb {
+  background-color: #48a0f7;
 }
 
-.volumeControl .scale-thumb {
-  min-width: 0;
-  opacity: 0;
+.scrubber:active::-moz-range-thumb,
+.volumeControl:active::-moz-range-thumb {
+  background-color: #2d89e6;
 }
 
-.durationBox {
-  -moz-box-pack: center;
+.scrubber::-moz-range-track,
+.scrubber::-moz-range-progress {
+  background-color: transparent;
 }
 
-.durationLabel {
-  margin-left: -22px; /* 1/2 of scrubber thumb width, for overhang. */
-  padding-left: 8px; /* don't bump into the scrubber bar */
-  color: rgba(255,255,255,.75);
-  font: message-box;
-  font-size: 11px;
+.volumeControl::-moz-range-progress,
+.volumeControl::-moz-range-track {
+  height: 5px;
+  border-radius: 2.5px;
 }
 
-.durationLabel {
-  padding-top: 0; /* center vertically with scrubber bar */
+.volumeControl::-moz-range-progress {
+  background-color: #ffffff;
 }
 
-.positionLabel {
-  display: none;
+.volumeControl::-moz-range-track {
+  background-color: rgba(0,0,0,0.7);
 }
 
-.backgroundBar {
-  /* margin top/bottom: make bar 8px tall (control height = 28, minus 2 * 10 margin) */
-  /* margin left/right: 1/2 of scrubber thumb width, for overhang. */
-  margin: 10px 22px;
-  background-color: rgba(255,255,255,.5);
+
+.bufferBar::-moz-progress-bar {
+  background-color: rgba(255,255,255,0.3);
   border-radius: 2.5px;
 }
 
-.bufferBar,
-.progressBar {
-  /* margin top/bottom: make bar 8px tall (control height = 28, minus 2 * 10 margin) */
-  /* margin left/right: 1/2 of scrubber thumb width, for overhang. */
-  margin: 10px 22px;
-  -moz-appearance: none;
-  border: none;
-  background-color: transparent;
-  min-width: 0;
-  min-height: 0;
-}
-
-/* .progress-bar is an element inside the <progressmeter> implementation. */
-.bufferBar .progress-bar {
-  /*
-   * Note that this is drawn on top of the .backgroundBar. So although this
-   * has the same background-color specified, the semitransparent
-   * compositing gives it a different visual appearance.
-   */
-  background-color: rgba(255,255,255,.5);
-  border-radius: 2.5px;
-  -moz-appearance: none;
+.progressBar::-moz-progress-bar {
+  background-color: #00b6f0;
 }
 
-.progressBar .progress-bar {
-  background-color: white;
+.textTrackList {
+  position: absolute;
+  right: 5px;
+  bottom: 45px;
+  max-width: 80%;
+  border: 1px solid #000000;
   border-radius: 2.5px;
-  -moz-appearance: none;
+  padding: 5px 0;
+  vertical-align: middle;
+  font-size: 12px;
+  background-color: #000000;
+  opacity: 0.7;
 }
 
-/* .scale-slider is an element inside the <scale> implementation. */
-.scrubber .scale-slider,
-.volumeControl .scale-slider {
-  /* Hide the default horizontal bar. */
-  -moz-appearance: none;
-  background: none;
+.textTrackList > .textTrackItem {
+  display: block;
+  width: 100%;
+  height: 30px;
+  padding: 2px 10px;
+  border: none;
   margin: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-align: left;
+  text-overflow: ellipsis;
+  color: #ffffff;
+  background-color: transparent;
 }
 
-.scrubber .scale-slider {
-  /* abs(margin-top) + margin-bottom + bar height == timeThumb height */
-  margin-top: -10px;
-  margin-bottom: 10px;
-}
-/* .scale-thumb is an element inside the <scale> implementation. */
-.scrubber .scale-thumb,
-.volumeControl .scale-thumb {
-  /* Override the default thumb appearance with a custom image. */
-  -moz-appearance: none;
-  background: transparent;
-  border: none;
+.textTrackList > .textTrackItem:hover {
+  background-color: #444444;
 }
 
-.timeThumb {
-  background: url(chrome://global/skin/media/scrubberThumb.png) no-repeat center;
-  min-width: 45px;
-  min-height: 28px;
-  -moz-box-pack: center;
+.textTrackList > .textTrackItem[on] {
+  color: #48a0f7;
 }
 
-.timeThumb[showhours="true"] {
-  background-image: url(chrome://global/skin/media/scrubberThumbWide.png);
+.positionLabel,
+.durationLabel {
+  display: none;
 }
 
-.timeLabel {
-  color: rgba(255,255,255,.75);
+.positionDurationBox {
+  text-align: center;
+  padding-inline-start: 1px;
+  padding-inline-end: 9px;
+  white-space: nowrap;
   font: message-box;
-  font-size: 10px;
-  text-shadow: rgba(0,0,0,.3) 0 1px;
-  padding-top: 7px;
+  font-size: 13px;
+  font-size-adjust: 0.55;
+  color: #ffffff;
 }
 
-.timeLabel {
-  padding-top: 5px; /* center vertically with scrubber bar */
-}
 
-.statusOverlay {
-  -moz-box-align: center;
-  -moz-box-pack: center;
-  background-color: rgba(0,0,0,.55);
+.duration {
+  display: inline-block;
+  white-space: pre;
+  color: #929292;
 }
 
 .statusIcon {
-  margin-bottom: 28px; /* same height as .controlBar, to keep icon centered above it */
   width: 36px;
   height: 36px;
+  margin-bottom: 20px;
 }
 
 .statusIcon[type="throbber"] {
@@ -278,61 +376,55 @@
 }
 
 .statusIcon[type="error"] {
+  min-width: 70px;
+  min-height: 60px;
   background: url(chrome://global/skin/media/error.png) no-repeat center;
+  background-size: contain;
 }
 
 /* Overlay Play button */
 .clickToPlay {
-  width: 64px;
-  height: 64px;
-  -moz-box-pack: center;
-  -moz-box-align: center;
-  opacity: 0.7;
-  background-image: url(chrome://global/skin/media/clicktoplay-bgtexture.png),
-                    url(chrome://global/skin/media/videoClickToPlayButton.svg);
-  background-repeat: repeat, no-repeat;
-  background-position: center, center;
-  background-size: auto, 64px 64px;
-  background-color: hsla(0,0%,10%,.5);
+  min-width: 48px;
+  min-height: 48px;
+  border-radius: 50%;
+  background-image: url(chrome://global/skin/media/playButton.svg#play);
+  background-repeat: no-repeat;
+  background-position: 54% 50%;
+  background-size: 40% 40%;
+  background-color: #1a1a1a;
+  opacity: 0.8;
+  position: relative;
+  top: 20px;
 }
+
+.controlsSpacerStack:hover > .clickToPlay,
 .clickToPlay:hover {
-  opacity: 1;
+  opacity: 0.55;
 }
 
-/* Statistics formatting */
-html|*.statsDiv {
-  position: relative;
+.controlsSpacerStack:hover > .clickToPlay[fadeout] {
+  opacity: 0;
 }
-html|td {
-  height: 1em;
-  max-height: 1em;
-  padding: 0 2px;
-}
-html|table {
-  font-family: Helvetica, Arial, sans-serif;
-  font-size: 11px;
-  color: white;
-  text-shadow:
-    -1px -1px 0 #000,
-    1px -1px 0 #000,
-    -1px 1px 0 #000,
-    1px 1px 0 #000;
-  min-width: 100%;
-  background: rgba(68,68,68,.7);
-  table-layout: fixed;
-  border-collapse: collapse;
-  position: absolute;
+
+.controlBar[fullscreen-unavailable] .fullscreenButton {
+  display: none;
 }
 
 /* CSS Transitions */
 .clickToPlay {
-  transition-property: opacity, background-size;
+  transition-property: transform, opacity;
   transition-duration: 400ms, 400ms;
 }
+
+.controlsSpacer[fadeout] {
+  opacity: 0;
+}
+
 .clickToPlay[fadeout] {
-  background-size: auto, 192px 192px;
+  transform: scale(3);
   opacity: 0;
 }
+
 .clickToPlay[fadeout][immediate] {
   transition-property: opacity, background-size;
   transition-duration: 0s, 0s;
@@ -348,10 +440,6 @@ html|table {
   transition-property: opacity, margin-top;
   transition-duration: 200ms, 200ms;
 }
-.volumeStack[fadeout] {
-  opacity: 0;
-  margin-top: 0;
-}
 .statusOverlay:not([immediate]) {
   transition-property: opacity;
   transition-duration: 300ms;
@@ -363,66 +451,22 @@ html|table {
 
 /* Error description formatting */
 .errorLabel {
-  font-family: Helvetica, Arial, sans-serif;
-  font-size: 11px;
-  color: #bbb;
-  text-shadow:
-    -1px -1px 0 #000,
-    1px -1px 0 #000,
-    -1px 1px 0 #000,
-    1px 1px 0 #000;
   padding: 0 10px;
   text-align: center;
+  font: message-box;
+  font-size: 14px;
+  color: #ffffff;
+}
+
+.errorLabel {
+  display: none;
 }
 
-@media (min-resolution: 2dppx) {
-  .playButton {
-    background-image: url(chrome://global/skin/media/pauseButton@2x.png);
-    background-size: 28px 28px;
-  }
-  .playButton[paused] {
-    background-image: url(chrome://global/skin/media/playButton@2x.png);
-    background-size: 28px 28px;
-  }
-  .volumeBackground {
-    background-image: url(chrome://global/skin/media/volume-empty@2x.png);
-    background-size: 32px 16px;
-  }
-  .volumeForeground {
-    background-image: url(chrome://global/skin/media/volume-full@2x.png);
-    background-size: 32px 16px;
-  }
-  .muteButton {
-    background-image: url(chrome://global/skin/media/muteButton@2x.png);
-    background-size: 33px 28px;
-  }
-  .muteButton[muted] {
-    background-image: url(chrome://global/skin/media/unmuteButton@2x.png);
-    background-size: 33px 28px;
-  }
-  .muteButton[noAudio] {
-    background-image: url(chrome://global/skin/media/noAudio@2x.png);
-    background-size: 33px 28px;
-  }
-  .closedCaptionButton {
-    background-image: url(chrome://global/skin/media/closeCaptionButton@2x.png);
-    background-position: 4px;
-    background-size: 28px 28px;
-  }
-  .fullscreenButton {
-    background-image: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton@2x.png"), 0, 32, 32, 0);
-    background-size: 16px 16px;
-  }
-  .fullscreenButton[fullscreened] {
-    background-image: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton@2x.png"), 0, 64, 32, 32);
-    background-size: 16px 16px;
-  }
-  .timeThumb {
-    background-image: url(chrome://global/skin/media/scrubberThumb@2x.png);
-    background-size: 33px 28px;
-  }
-  .timeThumb[showhours="true"] {
-    background-image: url(chrome://global/skin/media/scrubberThumbWide@2x.png);
-    background-size: 45px 28px;
-  }
+[error="errorAborted"]         > [anonid="errorAborted"],
+[error="errorNetwork"]         > [anonid="errorNetwork"],
+[error="errorDecode"]          > [anonid="errorDecode"],
+[error="errorSrcNotSupported"] > [anonid="errorSrcNotSupported"],
+[error="errorNoSource"]        > [anonid="errorNoSource"],
+[error="errorGeneric"]         > [anonid="errorGeneric"] {
+  display: inline;
 }
diff --git a/arc-firefox-theme/chrome/global/media/volume-empty.png b/arc-firefox-theme/chrome/global/media/volume-empty.png
deleted file mode 100644
index 589abfb..0000000
--- a/arc-firefox-theme/chrome/global/media/volume-empty.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/volume-empty@2x.png b/arc-firefox-theme/chrome/global/media/volume-empty@2x.png
deleted file mode 100644
index ca494e8..0000000
--- a/arc-firefox-theme/chrome/global/media/volume-empty@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/volume-full.png b/arc-firefox-theme/chrome/global/media/volume-full.png
deleted file mode 100644
index 4398a56..0000000
--- a/arc-firefox-theme/chrome/global/media/volume-full.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/media/volume-full@2x.png b/arc-firefox-theme/chrome/global/media/volume-full@2x.png
deleted file mode 100644
index 5bf63c7..0000000
--- a/arc-firefox-theme/chrome/global/media/volume-full@2x.png
+++ /dev/null
diff --git a/arc-firefox-theme/chrome/global/menu.css b/arc-firefox-theme/chrome/global/menu.css
index 06e3b21..386d911 100644
--- a/arc-firefox-theme/chrome/global/menu.css
+++ b/arc-firefox-theme/chrome/global/menu.css
@@ -12,8 +12,7 @@
 
 menu,
 menuitem,
-menucaption,
-.splitmenu-menuitem {
+menucaption {
   -moz-appearance: menuitem;
   -moz-box-align: center;
   max-width: 42em;
@@ -28,15 +27,13 @@ menuitem[default="true"] {
 }
 
 menu[_moz-menuactive="true"],
-menuitem[_moz-menuactive="true"],
-.splitmenu-menuitem[_moz-menuactive="true"] {
+menuitem[_moz-menuactive="true"] {
   color: -moz-menuhovertext;
   background-color: -moz-menuhover;
 }
 
 menu[disabled="true"],
 menuitem[disabled="true"],
-.splitmenu-menuitem[disabled="true"],
 menucaption[disabled="true"] {
   color: GrayText;
 }
diff --git a/arc-firefox-theme/chrome/global/narrate.css b/arc-firefox-theme/chrome/global/narrate.css
index 8a44e78..4514eff 100644
--- a/arc-firefox-theme/chrome/global/narrate.css
+++ b/arc-firefox-theme/chrome/global/narrate.css
@@ -22,7 +22,7 @@ body.dark .narrating {
   z-index: -1;
   border-bottom-style: solid;
   border-bottom-width: 7px;
-  transition: left 0.1s ease;
+  transition: left 0.1s ease, width 0.1s ease;
 }
 
 .narrating > .narrate-word-highlight {
diff --git a/arc-firefox-theme/chrome/global/notification.css b/arc-firefox-theme/chrome/global/notification.css
index 2e57051..a9e3ea8 100644
--- a/arc-firefox-theme/chrome/global/notification.css
+++ b/arc-firefox-theme/chrome/global/notification.css
@@ -73,10 +73,27 @@ notification[type="critical"] {
   padding-right: 11px;
 }
 
-/* Popup notification */
+/* 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/. */
+
+.popup-notification-body-container {
+  padding: var(--arrowpanel-padding);
+}
+
+.popup-notification-icon {
+  width: 32px;
+  height: 32px;
+  margin-inline-end: var(--arrowpanel-padding);
+}
 
 .popup-notification-body {
-  max-width: 25em;
+  width: 25em;
+}
+
+.popup-notification-closebutton {
+  margin-inline-end: -8px;
+  margin-top: -8px;
 }
 
 .popup-notification-origin:not([value]),
@@ -93,14 +110,106 @@ notification[type="critical"] {
 }
 
 .popup-notification-button-container {
-  margin-top: 17px;
+  background-color: var(--arrowpanel-dimmed);
+  display: flex;
 }
 
-.popup-notification-closebutton {
-  margin-inline-end: -10px;
-  margin-top: -6px;
+.popup-notification-button-container > toolbarseparator {
+  -moz-appearance: none;
+  border: 0;
+  border-left: 1px solid var(--panel-separator-color);
+  margin: 7px 0 7px;
+  min-width: 0;
+}
+
+.popup-notification-button-container:hover > toolbarseparator {
+  margin: 0;
+}
+
+.popup-notification-button {
+  flex: 1;
+  -moz-appearance: none;
+  background-color: transparent;
+  color: inherit;
+  margin: 0;
+  padding: 0;
+  min-width: 0;
+  min-height: 41px;
+  border: none;
+  border-top: 1px solid var(--panel-separator-color);
+}
+
+.popup-notification-button:hover:not([disabled]) {
+  background-color: var(--arrowpanel-dimmed);
+}
+
+.popup-notification-button:hover:active:not([disabled]) {
+  background-color: var(--arrowpanel-dimmed-further);
+  box-shadow: 0 1px 0 hsla(210,4%,10%,.05) inset;
+}
+
+.popup-notification-button[disabled] {
+  background-color: var(--arrowpanel-dimmed-further);
+  color: graytext;
+  /* the !important is to override the button[disabled] settings in
+   * windows/linux button.css */
+  -moz-border-top-colors: var(--panel-separator-color) !important;
+}
+
+.popup-notification-button[default] {
+  flex: 0 50%;
+}
+
+.popup-notification-button[default]:not([disabled]) {
+  background-color: #0996f8;
+  color: white;
+}
+
+.popup-notification-button[default]:hover:not([disabled]) {
+  background-color: #0675d3;
+}
+
+.popup-notification-button[default]:hover:active:not([disabled]) {
+  background-color: #0568ba;
+}
+
+.popup-notification-button[anonid="secondarybutton"][hidden="true"] ~ .popup-notification-button[default] {
+  flex: 1;
+}
+
+.popup-notification-button > .button-box {
+  padding: 0;
+  margin: 0;
+  /* prevent double border on windows when focused */
+  border: none;
+}
+
+.popup-notification-dropmarker {
+  flex: none;
+  padding: 0 15px;
+}
+
+.popup-notification-dropmarker > .button-box > hbox {
+  display: none;
+}
+
+.popup-notification-dropmarker > .button-box > .button-menu-dropmarker {
+  /* This is to override the linux !important */
+  -moz-appearance: none !important;
+  display: -moz-box;
+  padding: 0;
+  margin: 0;
+}
+
+.popup-notification-dropmarker > .button-box > .button-menu-dropmarker > .dropmarker-icon {
+  width: 16px;
+  height: 16px;
+  list-style-image: url(chrome://global/skin/icons/menubutton-dropmarker.svg);
+  filter: url(chrome://global/skin/filters.svg#fill);
+  fill: currentColor;
 }
 
-.popup-notification-menubutton > .button-menubutton-button[disabled] {
-  opacity: 0.5;
+.popup-notification-button:-moz-focusring {
+  outline: 1px -moz-dialogtext dotted;
+  outline-offset: -5px;
 }
diff --git a/arc-firefox-theme/chrome/global/reader/RM-Type-Controls-Arrow.svg b/arc-firefox-theme/chrome/global/reader/RM-Type-Controls-Arrow.svg
index 837392f..9c66311 100644
--- a/arc-firefox-theme/chrome/global/reader/RM-Type-Controls-Arrow.svg
+++ b/arc-firefox-theme/chrome/global/reader/RM-Type-Controls-Arrow.svg
@@ -1,8 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>

-<!-- 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 xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">

-  <polygon opacity="0.15"  points="16.583,0.015 16.569,0 4.583,12 16.569,24 16.583,23.985"/>

-  <polygon fill="#fbfbfb" points="16.575,1.021 16.561,1.008 5.583,12 16.577,23.008 16.591,22.994 "/>

-</svg>

+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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 xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 24">
+  <polygon points="16.58 0.01 16.57 0 4.58 12 16.57 24 16.58 23.98 16.58 0.01" fill="#b5b5b5"/>
+  <polyline points="16.63 1.51 6.08 12.01 16.63 22.5" fill="#fbfbfb"/>
+</svg>
diff --git a/arc-firefox-theme/chrome/global/timepicker.css b/arc-firefox-theme/chrome/global/timepicker.css
deleted file mode 100644
index e8d081b..0000000
--- a/arc-firefox-theme/chrome/global/timepicker.css
+++ /dev/null
@@ -1,153 +0,0 @@
-/* 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/. */
-
-:root {
-  --font-size-default: 1.1rem;
-  --spinner-width: 3rem;
-  --spinner-margin-top-bottom: 0.4rem;
-  --spinner-item-height: 2.4rem;
-  --spinner-item-margin-bottom: 0.1rem;
-  --spinner-button-height: 1.2rem;
-  --colon-width: 2rem;
-  --day-period-spacing-width: 1rem;
-
-  --border: 0.1rem solid #D6D6D6;
-  --border-radius: 0.3rem;
-
-  --font-color: #191919;
-  --fill-color: #EBEBEB;
-
-  --selected-font-color: #FFFFFF;
-  --selected-fill-color: #0996F8;
-
-  --button-font-color: #858585;
-  --button-font-color-hover: #4D4D4D;
-  --button-font-color-active: #191919;
-
-  --disabled-opacity: 0.2;
-}
-
-html {
-  font-size: 10px;
-}
-
-body {
-  margin: 0;
-  color: var(--font-color);
-  font-size: var(--font-size-default);
-}
-
-#time-picker {
-  display: flex;
-  flex-direction: row;
-  justify-content: space-around;
-}
-
-.spinner-container {
-  font-family: sans-serif;
-  display: flex;
-  flex-direction: column;
-  width: var(--spinner-width);
-}
-
-.spinner-container > button {
-  -moz-appearance: none;
-  border: none;
-  background: none;
-  background-color: var(--button-font-color);
-  height: var(--spinner-button-height);
-}
-
-.spinner-container > button:hover {
-  background-color: var(--button-font-color-hover);
-}
-
-.spinner-container > button.active {
-  background-color: var(--button-font-color-active);
-}
-
-.spinner-container > button.up {
-  mask: url("chrome://global/skin/icons/find-arrows.svg#glyph-find-previous") no-repeat 50% 50%;
-}
-
-.spinner-container > button.down {
-  mask: url("chrome://global/skin/icons/find-arrows.svg#glyph-find-next") no-repeat 50% 50%;
-}
-
-.spinner-container.hide-buttons > button {
-  visibility: hidden;
-}
-
-.spinner-container > .spinner {
-  position: relative;
-  width: 100%;
-  margin: var(--spinner-margin-top-bottom) 0;
-  cursor: default;
-  overflow-y: scroll;
-  scroll-snap-type: mandatory;
-  scroll-snap-points-y: repeat(100%);
-}
-
-.spinner-container > .spinner > div {
-  box-sizing: border-box;
-  position: relative;
-  text-align: center;
-  padding: calc((var(--spinner-item-height) - var(--font-size-default)) / 2) 0;
-  margin-bottom: var(--spinner-item-margin-bottom);
-  height: var(--spinner-item-height);
-  -moz-user-select: none;
-  scroll-snap-coordinate: 0 0;
-}
-
-.spinner-container > .spinner > div:hover::before {
-  background: var(--fill-color);
-  border: var(--border);
-  border-radius: var(--border-radius);
-  content: "";
-  position: absolute;
-  top: 0%;
-  bottom: 0%;
-  left: 0%;
-  right: 0%;
-  z-index: -10;
-}
-
-.spinner-container > .spinner:not(.scrolling) > div.selection {
-  color: var(--selected-font-color);
-}
-
-.spinner-container > .spinner > div.selection::before {
-  background: var(--selected-fill-color);
-  border: none;
-  border-radius: var(--border-radius);
-  content: "";
-  position: absolute;
-  top: 0%;
-  bottom: 0%;
-  left: 0%;
-  right: 0%;
-  z-index: -10;
-}
-
-.spinner-container > .spinner > div.disabled::before,
-.spinner-container > .spinner.scrolling > div.selection::before,
-.spinner-container > .spinner.scrolling > div:hover::before {
-  display: none;
-}
-
-.spinner-container > .spinner > div.disabled {
-  opacity: var(--disabled-opacity);
-}
-
-.colon {
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  width: var(--colon-width);
-  margin-bottom: 0.3rem;
-}
-
-.spacer {
-  width: var(--day-period-spacing-width);
-}
\ No newline at end of file