diff --git a/application/palemoon/components/preferences/advanced.xul b/application/palemoon/components/preferences/advanced.xul
index 34998c1b8..e5f3bb160 100644
--- a/application/palemoon/components/preferences/advanced.xul
+++ b/application/palemoon/components/preferences/advanced.xul
@@ -106,6 +106,8 @@
       <preference id="general.smoothScroll.scrollbars"               name="general.smoothScroll.scrollbars"               type="bool"/>
       <preference id="general.smoothScroll.scrollbars.durationMinMS" name="general.smoothScroll.scrollbars.durationMinMS" type="int"/>
       <preference id="general.smoothScroll.scrollbars.durationMaxMS" name="general.smoothScroll.scrollbars.durationMaxMS" type="int"/>
+      
+      <preference id="mousewheel.default.delta_multiplier_y"         name="mousewheel.default.delta_multiplier_y"         type="int"/>
     </preferences>
 
 #ifdef HAVE_SHELL_SERVICE
@@ -445,6 +447,13 @@
                      preference="general.smoothScroll.scrollbars.durationMaxMS"/>
             <label flex="1">ms.</label>
           </hbox>
+          
+          <hbox align="center">
+            <label value="&smoothscroll.overall.yspeed.label;"/>
+            <textbox type="number" size="3" min="1" max="999"
+                     preference="mousewheel.default.delta_multiplier_y"/>
+            <label flex="1">%.</label>
+          </hbox>
         </groupbox>  
         </tabpanel>
         <!-- end Smooth scrolling tab -->
diff --git a/application/palemoon/locales/en-US/chrome/browser/preferences/advanced.dtd b/application/palemoon/locales/en-US/chrome/browser/preferences/advanced.dtd
index dcb7b0e90..bb8dd12d2 100644
--- a/application/palemoon/locales/en-US/chrome/browser/preferences/advanced.dtd
+++ b/application/palemoon/locales/en-US/chrome/browser/preferences/advanced.dtd
@@ -147,3 +147,5 @@
 <!ENTITY smoothscroll.pagekeys.duration     "Page up/down scroll duration:">
 <!ENTITY smoothscroll.scrollbar.label       "Smooth scroll with scrollbars">
 <!ENTITY smoothscroll.scrollbar.duration    "Scrollbar smooth scroll duration:">
+
+<!ENTITY smoothscroll.overall.yspeed.label  "Overall smooth scroll speed:">