2 files changed, 75 insertions, 0 deletions
diff --git a/application/palemoon/themes/osx/browser.css b/application/palemoon/themes/osx/browser.css
index a915af3a3..d9b7d1271 100644
--- a/application/palemoon/themes/osx/browser.css
+++ b/application/palemoon/themes/osx/browser.css
@@ -1821,6 +1821,79 @@ richlistitem[type~="action"][actiontype="switchtab"][selected="true"] > .ac-url-
     }
 }
   
+/* Tab sound indicator */
+.tab-icon-sound {
+  -moz-margin-start: 4px;
+  width: 16px;
+  height: 16px;
+  padding: 0;
+}
+
+.tab-icon-sound:not(:-moz-any([soundplaying],[muted])),
+.tab-icon-sound[pinned] {
+  display: none;
+}
+
+.tab-icon-sound[soundplaying] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
+}
+
+.tab-icon-sound[soundplaying]:hover {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-hover");
+}
+
+.tab-icon-sound[soundplaying]:hover:active {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-pressed");
+}
+
+.tab-icon-sound[muted],
+.tab-icon-sound[blocked] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted");
+}
+
+.tab-icon-sound[muted]:hover,
+.tab-icon-sound[blocked]:hover {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted-hover");
+}
+
+.tab-icon-sound[muted]:hover:active,
+.tab-icon-sound[blocked]:hover:active {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted-pressed");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[soundplaying] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-dark");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[soundplaying]:hover {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-dark-hover");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[soundplaying]:hover:active {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-dark-pressed");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[blocked],
+#TabsToolbar[brighttext] .tab-icon-sound[muted] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted-dark");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[blocked]:hover,
+#TabsToolbar[brighttext] .tab-icon-sound[muted]:hover {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted-dark-hover");
+}
+
+#TabsToolbar[brighttext] .tab-icon-sound[blocked]:hover:active,
+#TabsToolbar[brighttext] .tab-icon-sound[muted]:hover:active {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted-dark-pressed");
+}
+
+.tab-icon-sound[soundplaying-scheduledremoval]:not([muted]):not(:hover),
+.tab-icon-overlay[soundplaying-scheduledremoval]:not([muted]):not(:hover) {
+  transition: opacity .3s linear var(--soundplaying-removal-delay);
+  opacity: 0;
+}
+
 /* Tab scrollbox arrow, tabstrip new tab and all-tabs buttons */
 
 .tabbrowser-arrowscrollbox > .scrollbutton-up,
diff --git a/application/palemoon/themes/osx/jar.mn b/application/palemoon/themes/osx/jar.mn
index a66563989..1a11d0a30 100644
--- a/application/palemoon/themes/osx/jar.mn
+++ b/application/palemoon/themes/osx/jar.mn
@@ -166,6 +166,8 @@ browser.jar:
         skin/classic/browser/tabbrowser/tab-arrow-left-inverted.png  (tabbrowser/tab-arrow-left-inverted.png)
         skin/classic/browser/tabbrowser/tab-overflow-border.png      (tabbrowser/tab-overflow-border.png)
         skin/classic/browser/tabbrowser/tabDragIndicator.png         (tabbrowser/tabDragIndicator.png)
+        skin/classic/browser/tabbrowser/tab-audio.svg                (../shared/tabbrowser/tab-audio.svg)
+        skin/classic/browser/tabbrowser/tab-audio-small.svg          (../shared/tabbrowser/tab-audio-small.svg)
 #ifdef MOZ_SERVICES_SYNC
         skin/classic/browser/sync-throbber.png
         skin/classic/browser/sync-16.png