diff --git a/browser/installer/allowed-dupes.mn b/browser/installer/allowed-dupes.mn
index faa7504a2e6d..a131b6da45b0 100644
--- a/browser/installer/allowed-dupes.mn
+++ b/browser/installer/allowed-dupes.mn
@@ -76,6 +76,7 @@ browser/features/firefox@getpocket.com/chrome/skin/linux/menuPanel@2x.png
 browser/features/firefox@getpocket.com/chrome/skin/windows/menuPanel.png
 browser/features/firefox@getpocket.com/chrome/skin/windows/menuPanel@2x.png
 chrome.manifest
+chrome/toolkit/skin/classic/global/arrowscrollbox.css
 chrome/toolkit/skin/classic/global/autocomplete.css
 chrome/toolkit/skin/classic/global/button.css
 chrome/toolkit/skin/classic/global/checkbox.css
@@ -91,7 +92,6 @@ chrome/toolkit/skin/classic/global/preferences.css
 chrome/toolkit/skin/classic/global/radio.css
 chrome/toolkit/skin/classic/global/richlistbox.css
 chrome/toolkit/skin/classic/global/scrollbars.css
-chrome/toolkit/skin/classic/global/scrollbox.css
 chrome/toolkit/skin/classic/global/splitter.css
 chrome/toolkit/skin/classic/global/tabbox.css
 chrome/toolkit/skin/classic/global/textbox.css
diff --git a/mobile/android/installer/allowed-dupes.mn b/mobile/android/installer/allowed-dupes.mn
index 71b6c27034bc..fc5bbce1f550 100644
--- a/mobile/android/installer/allowed-dupes.mn
+++ b/mobile/android/installer/allowed-dupes.mn
@@ -5,6 +5,7 @@
 # PLEASE DO NOT ADD MORE EXCEPTIONS TO THIS LIST
 #
 
+chrome/toolkit/skin/classic/global/arrowscrollbox.css
 chrome/toolkit/skin/classic/global/autocomplete.css
 chrome/toolkit/skin/classic/global/button.css
 chrome/toolkit/skin/classic/global/checkbox.css
@@ -20,7 +21,6 @@ chrome/toolkit/skin/classic/global/preferences.css
 chrome/toolkit/skin/classic/global/radio.css
 chrome/toolkit/skin/classic/global/richlistbox.css
 chrome/toolkit/skin/classic/global/scrollbars.css
-chrome/toolkit/skin/classic/global/scrollbox.css
 chrome/toolkit/skin/classic/global/splitter.css
 chrome/toolkit/skin/classic/global/tabbox.css
 chrome/toolkit/skin/classic/global/textbox.css
diff --git a/toolkit/content/widgets/arrowscrollbox.js b/toolkit/content/widgets/arrowscrollbox.js
index 6db5ccdff5e6..d081ecd2b823 100644
--- a/toolkit/content/widgets/arrowscrollbox.js
+++ b/toolkit/content/widgets/arrowscrollbox.js
@@ -23,7 +23,7 @@
     get markup() {
       return `
       <html:link rel="stylesheet" href="chrome://global/skin/toolbarbutton.css"/>
-      <html:link rel="stylesheet" href="chrome://global/skin/scrollbox.css"/>
+      <html:link rel="stylesheet" href="chrome://global/skin/arrowscrollbox.css"/>
       <toolbarbutton id="scrollbutton-up" part="scrollbutton-up"/>
       <spacer part="overflow-start-indicator"/>
       <scrollbox part="scrollbox" flex="1">
diff --git a/toolkit/themes/mobile/jar.mn b/toolkit/themes/mobile/jar.mn
index 8ff65e4e4ad7..b0a387578ecf 100644
--- a/toolkit/themes/mobile/jar.mn
+++ b/toolkit/themes/mobile/jar.mn
@@ -9,6 +9,7 @@ toolkit.jar:
    skin/classic/global/aboutMemory.css                     (global/aboutMemory.css)
    skin/classic/global/aboutNetworking.css                 (global/aboutNetworking.css)
    skin/classic/global/aboutSupport.css                    (global/aboutSupport.css)
+   skin/classic/global/arrowscrollbox.css                  (global/empty.css)
    skin/classic/global/autocomplete.css                    (global/empty.css)
    skin/classic/global/button.css                          (global/empty.css)
    skin/classic/global/checkbox.css                        (global/empty.css)
@@ -21,7 +22,6 @@ toolkit.jar:
    skin/classic/global/popup.css                           (global/empty.css)
    skin/classic/global/radio.css                           (global/empty.css)
    skin/classic/global/richlistbox.css                     (global/empty.css)
-   skin/classic/global/scrollbox.css                       (global/empty.css)
    skin/classic/global/splitter.css                        (global/empty.css)
    skin/classic/global/tabbox.css                          (global/empty.css)
    skin/classic/global/textbox.css                         (global/empty.css)
diff --git a/toolkit/themes/shared/scrollbox.css b/toolkit/themes/shared/arrowscrollbox.css
similarity index 100%
rename from toolkit/themes/shared/scrollbox.css
rename to toolkit/themes/shared/arrowscrollbox.css
diff --git a/toolkit/themes/shared/jar.inc.mn b/toolkit/themes/shared/jar.inc.mn
index 65d064c03390..61a61d4dd2f9 100644
--- a/toolkit/themes/shared/jar.inc.mn
+++ b/toolkit/themes/shared/jar.inc.mn
@@ -21,11 +21,11 @@ toolkit.jar:
   skin/classic/global/aboutLicense.css                     (../../shared/aboutLicense.css)
   skin/classic/global/aboutSupport.css                     (../../shared/aboutSupport.css)
   skin/classic/global/appPicker.css                        (../../shared/appPicker.css)
+* skin/classic/global/arrowscrollbox.css                   (../../shared/arrowscrollbox.css)
   skin/classic/global/config.css                           (../../shared/config.css)
   skin/classic/global/datetimeinputpickers.css             (../../shared/datetimeinputpickers.css)
   skin/classic/global/numberinput.css                      (../../shared/numberinput.css)
   skin/classic/global/passwordmgr.css                      (../../shared/passwordmgr.css)
-* skin/classic/global/scrollbox.css                        (../../shared/scrollbox.css)
   skin/classic/global/icons/arrow-left.svg                 (../../shared/icons/arrow-left.svg)
   skin/classic/global/icons/autoscroll.svg                 (../../shared/icons/autoscroll.svg)
   skin/classic/global/icons/autoscroll-horizontal.svg      (../../shared/icons/autoscroll-horizontal.svg)