diff --git a/application/palemoon/base/content/browser-tabPreviews.xml b/application/palemoon/base/content/browser-tabPreviews.xml
index 5b9c582260..4f54321eac 100644
--- a/application/palemoon/base/content/browser-tabPreviews.xml
+++ b/application/palemoon/base/content/browser-tabPreviews.xml
@@ -43,7 +43,7 @@
             <children/>
           </xul:hbox>
           <xul:hbox align="center">
-            <xul:image xbl:inherits="soundplaying,muted" class="alltabs-endimage"/>
+            <xul:image xbl:inherits="soundplaying,muted" class="allTabs-endimage"/>
             <xul:label flex="1" xbl:inherits="value=label,crop" class="allTabs-preview-label plain"/>
           </xul:hbox>
         </xul:vbox>
diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index 62b2028b45..9ee7f1b115 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -5160,7 +5160,7 @@
 
           function addEndImage() {
             let endImage = document.createElement("image");
-            endImage.setAttribute("class", "alltabs-endimage");
+            endImage.setAttribute("class", "allTabs-endimage");
             let endImageContainer = document.createElement("hbox");
             endImageContainer.setAttribute("align", "center");
             endImageContainer.setAttribute("pack", "center");
diff --git a/application/palemoon/themes/linux/browser.css b/application/palemoon/themes/linux/browser.css
index 33ae211d67..516677fe60 100644
--- a/application/palemoon/themes/linux/browser.css
+++ b/application/palemoon/themes/linux/browser.css
@@ -1766,17 +1766,17 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   padding: 0;
 }
 
-.alltabs-endimage[soundplaying],
+.allTabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
 }
 
-.alltabs-endimage[muted],
+.allTabs-endimage[muted],
 .tab-icon-sound[muted] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted");
 }
 
-.alltabs-endimage[blocked],
+.allTabs-endimage[blocked],
 .tab-icon-sound[blocked] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-blocked");
 }
diff --git a/application/palemoon/themes/osx/browser.css b/application/palemoon/themes/osx/browser.css
index b2e935b0b4..a7bd683bd0 100644
--- a/application/palemoon/themes/osx/browser.css
+++ b/application/palemoon/themes/osx/browser.css
@@ -1829,17 +1829,17 @@ richlistitem[type~="action"][actiontype="switchtab"][selected="true"] > .ac-url-
   padding: 0;
 }
 
-.alltabs-endimage[soundplaying],
+.allTabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
 }
 
-.alltabs-endimage[muted],
+.allTabs-endimage[muted],
 .tab-icon-sound[muted] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted");
 }
 
-.alltabs-endimage[blocked],
+.allTabs-endimage[blocked],
 .tab-icon-sound[blocked] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-blocked");
 }
diff --git a/application/palemoon/themes/windows/browser.css b/application/palemoon/themes/windows/browser.css
index e8d1d55e0e..f921554dfc 100644
--- a/application/palemoon/themes/windows/browser.css
+++ b/application/palemoon/themes/windows/browser.css
@@ -2026,17 +2026,17 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   padding: 0;
 }
 
-.alltabs-endimage[soundplaying],
+.allTabs-endimage[soundplaying],
 .tab-icon-sound[soundplaying] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio");
 }
 
-.alltabs-endimage[muted],
+.allTabs-endimage[muted],
 .tab-icon-sound[muted] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-muted");
 }
 
-.alltabs-endimage[blocked],
+.allTabs-endimage[blocked],
 .tab-icon-sound[blocked] {
   list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio.svg#tab-audio-blocked");
 }