diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 02ad6229..163fcf91 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -8346,7 +8346,7 @@
   .tab-icon-overlay:not([crashed])[muted] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  .tab-icon-overlay:not([crashed])[soundplaying] {
+  .tab-icon-overlay:not([crashed])[activemedia-blocked] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
   .tab-icon-overlay:not([sharing], [crashed]):is([soundplaying], [muted], [activemedia-blocked]) {
@@ -22955,7 +22955,7 @@
   .tab-icon-overlay:not([crashed])[muted] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  .tab-icon-overlay:not([crashed])[soundplaying] {
+  .tab-icon-overlay:not([crashed])[activemedia-blocked] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
 }
diff --git a/css/leptonChromeESR.css b/css/leptonChromeESR.css
index 4902780e..b8f5290e 100644
--- a/css/leptonChromeESR.css
+++ b/css/leptonChromeESR.css
@@ -8776,7 +8776,7 @@
   .tab-icon-overlay:not([crashed])[muted] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  .tab-icon-overlay:not([crashed])[soundplaying] {
+  .tab-icon-overlay:not([crashed])[activemedia-blocked] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
   .tab-icon-overlay:not([sharing], [crashed]):is([soundplaying], [muted], [activemedia-blocked]) {
diff --git a/src/tab/sound_tab/_show_with_favicons.scss b/src/tab/sound_tab/_show_with_favicons.scss
index c76a3b14..e2642003 100644
--- a/src/tab/sound_tab/_show_with_favicons.scss
+++ b/src/tab/sound_tab/_show_with_favicons.scss
@@ -79,7 +79,7 @@
   &[muted] {
       list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  &[soundplaying] {
+  &[activemedia-blocked] {
       list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
 }