5 files changed, 163 insertions, 17 deletions
diff --git a/application/palemoon/base/content/tabbrowser.css b/application/palemoon/base/content/tabbrowser.css
index 94d6dbb2e..43536b27a 100644
--- a/application/palemoon/base/content/tabbrowser.css
+++ b/application/palemoon/base/content/tabbrowser.css
@@ -45,10 +45,19 @@ tabpanels {
 }
 
 .tab-throbber:not([busy]),
-.tab-throbber[busy] + .tab-icon-image {
+.tab-throbber[busy] + .tab-icon-image,
+.tab-icon-sound:not([soundplaying]):not([muted]):not([blocked]),
+.tab-icon-sound[pinned],
+.tab-icon-overlay {
   display: none;
 }
 
+.tab-icon-overlay[soundplaying][pinned],
+.tab-icon-overlay[muted][pinned],
+.tab-icon-overlay[blocked][pinned] {
+  display: -moz-box;
+}
+
 .closing-tabs-spacer {
   pointer-events: none;
 }
diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index aa9c8adc3..62b2028b4 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -4888,6 +4888,10 @@
                      class="tab-icon-image"
                      role="presentation"
                      anonid="tab-icon"/>
+          <xul:image xbl:inherits="busy,soundplaying,soundplaying-scheduledremoval,pinned,muted,blocked,selected"
+                     anonid="overlay-icon"
+                     class="tab-icon-overlay"
+                     role="presentation"/>
           <xul:label flex="1"
                      xbl:inherits="value=label,crop,accesskey,fadein,pinned,selected"
                      class="tab-text tab-label"
diff --git a/application/palemoon/themes/linux/browser.css b/application/palemoon/themes/linux/browser.css
index 1eed36741..33ae211d6 100644
--- a/application/palemoon/themes/linux/browser.css
+++ b/application/palemoon/themes/linux/browser.css
@@ -1766,11 +1766,6 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   padding: 0;
 }
 
-.tab-icon-sound:not(:-moz-any([soundplaying],[muted],[blocked])),
-.tab-icon-sound[pinned] {
-  display: none;
-}
-
 .alltabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
@@ -1798,6 +1793,55 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   opacity: 0;
 }
 
+/* Tab icon overlay */
+.tab-icon-overlay {
+  width: 16px;
+  height: 16px;
+  margin-top: -8px;
+  margin-inline-start: -15px;
+  margin-inline-end: -1px;
+  position: relative;
+}
+
+.tab-icon-overlay[soundplaying],
+.tab-icon-overlay[muted]:not([crashed]),
+.tab-icon-overlay[blocked]:not([crashed]) {
+  border-radius: 10px;
+}
+
+.tab-icon-overlay[soundplaying]:hover,
+.tab-icon-overlay[muted]:not([crashed]):hover,
+.tab-icon-overlay[blocked]:not([crashed]):hover {
+  background-color: white;
+}
+
+.tab-icon-overlay[soundplaying] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio");
+}
+
+.tab-icon-overlay[muted] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-muted");
+}
+
+.tab-icon-overlay[blocked] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-blocked");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[soundplaying]:not([selected]):not(:hover),
+.tab-icon-overlay[soundplaying][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[muted]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[muted][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-muted");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[blocked]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[blocked][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-blocked");
+}
+
 /* Tabstrip new tab button */
 .tabs-newtab-button,
 #TabsToolbar > #new-tab-button ,
diff --git a/application/palemoon/themes/osx/browser.css b/application/palemoon/themes/osx/browser.css
index e402a3f0d..b2e935b0b 100644
--- a/application/palemoon/themes/osx/browser.css
+++ b/application/palemoon/themes/osx/browser.css
@@ -1829,11 +1829,6 @@ richlistitem[type~="action"][actiontype="switchtab"][selected="true"] > .ac-url-
   padding: 0;
 }
 
-.tab-icon-sound:not(:-moz-any([soundplaying],[muted],[blocked])),
-.tab-icon-sound[pinned] {
-  display: none;
-}
-
 .alltabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
@@ -1861,6 +1856,55 @@ richlistitem[type~="action"][actiontype="switchtab"][selected="true"] > .ac-url-
   opacity: 0;
 }
 
+/* Tab icon overlay */
+.tab-icon-overlay {
+  width: 16px;
+  height: 16px;
+  margin-top: -8px;
+  margin-inline-start: -15px;
+  margin-inline-end: -1px;
+  position: relative;
+}
+
+.tab-icon-overlay[soundplaying],
+.tab-icon-overlay[muted]:not([crashed]),
+.tab-icon-overlay[blocked]:not([crashed]) {
+  border-radius: 10px;
+}
+
+.tab-icon-overlay[soundplaying]:hover,
+.tab-icon-overlay[muted]:not([crashed]):hover,
+.tab-icon-overlay[blocked]:not([crashed]):hover {
+  background-color: white;
+}
+
+.tab-icon-overlay[soundplaying] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio");
+}
+
+.tab-icon-overlay[muted] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-muted");
+}
+
+.tab-icon-overlay[blocked] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-blocked");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[soundplaying]:not([selected]):not(:hover),
+.tab-icon-overlay[soundplaying][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[muted]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[muted][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-muted");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[blocked]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[blocked][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-blocked");
+}
+
 /* Tab scrollbox arrow, tabstrip new tab and all-tabs buttons */
 
 .tabbrowser-arrowscrollbox > .scrollbutton-up,
diff --git a/application/palemoon/themes/windows/browser.css b/application/palemoon/themes/windows/browser.css
index ca3d187c1..506b85bf0 100644
--- a/application/palemoon/themes/windows/browser.css
+++ b/application/palemoon/themes/windows/browser.css
@@ -2026,11 +2026,6 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   padding: 0;
 }
 
-.tab-icon-sound:not(:-moz-any([soundplaying],[muted],[blocked])),
-.tab-icon-sound[pinned] {
-  display: none;
-}
-
 .alltabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
@@ -2052,11 +2047,61 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   filter: invert(1);
 }
 
-.tab-icon-sound[soundplaying-scheduledremoval]:not([muted]):not(:hover) {
+.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 icon overlay */
+.tab-icon-overlay {
+  width: 16px;
+  height: 16px;
+  margin-top: -8px;
+  margin-inline-start: -15px;
+  margin-inline-end: -1px;
+  position: relative;
+}
+
+.tab-icon-overlay[soundplaying],
+.tab-icon-overlay[muted]:not([crashed]),
+.tab-icon-overlay[blocked]:not([crashed]) {
+  border-radius: 10px;
+}
+
+.tab-icon-overlay[soundplaying]:hover,
+.tab-icon-overlay[muted]:not([crashed]):hover,
+.tab-icon-overlay[blocked]:not([crashed]):hover {
+  background-color: white;
+}
+
+.tab-icon-overlay[soundplaying] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio");
+}
+
+.tab-icon-overlay[muted] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-muted");
+}
+
+.tab-icon-overlay[blocked] {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-blocked");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[soundplaying]:not([selected]):not(:hover),
+.tab-icon-overlay[soundplaying][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[muted]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[muted][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-muted");
+}
+
+#TabsToolbar[brighttext] .tab-icon-overlay[blocked]:not([crashed]):not([selected]):not(:hover),
+.tab-icon-overlay[blocked][selected]:-moz-lwtheme-brighttext:not(:hover) {
+  list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-small.svg#tab-audio-white-blocked");
+}
+
 /* Tab scrollbox arrow, tabstrip new tab and all-tabs buttons */
 
 .tabbrowser-arrowscrollbox > .scrollbutton-up,