diff --git a/browser/components/help/locale/en-US/firebird-toc.rdf b/browser/components/help/locale/en-US/firebird-toc.rdf
index fac3734728eb..561ea283ec52 100644
--- a/browser/components/help/locale/en-US/firebird-toc.rdf
+++ b/browser/components/help/locale/en-US/firebird-toc.rdf
@@ -326,7 +326,7 @@
     <nc:subheadings>
       <rdf:Seq>
         <rdf:li> <rdf:Description ID="menu-view-sidebar-bookmarks" nc:name="Bookmarks" nc:link="menu_reference.xhtml#bookmarks_sidebar"/> </rdf:li>
-        <rdf:li> <rdf:Description ID="menu-view-sidebar-history" nc:name="History" nc:link="menu_reference.xhtml#history"/> </rdf:li>
+        <rdf:li> <rdf:Description ID="menu-view-sidebar-history" nc:name="History" nc:link="menu_reference.xhtml#history_sidebar"/> </rdf:li>
       </rdf:Seq>
     </nc:subheadings>
   </rdf:Description>
diff --git a/browser/components/help/locale/en-US/menu_reference.xhtml b/browser/components/help/locale/en-US/menu_reference.xhtml
index 1c52d61e9958..585a582d69e2 100644
--- a/browser/components/help/locale/en-US/menu_reference.xhtml
+++ b/browser/components/help/locale/en-US/menu_reference.xhtml
@@ -165,16 +165,16 @@ Contributors:
     The status bar displays useful information about the page but may not be
     needed by everyone.</p>
 
-  <h3 id="Sidebar">Sidebar</h3>
+  <h3 id="sidebar">Sidebar</h3>
   <p>The Sidebar can display your bookmarks or the browsing history.  You can
     always close the Sidebar by clicking on the X in the upper-right
     corner.</p>
 
-    <h4 id="bookmarks_Sidebar">Bookmarks</h4>
+    <h4 id="bookmarks_sidebar">Bookmarks</h4>
     <p>Displays the Bookmarks Sidebar, which keeps your bookmarks visible all
       the time. This can be very useful if you use bookmarks often.</p>
 
-    <h4 id="history">History</h4>
+    <h4 id="history_sidebar">History</h4>
     <p>Displays the History Sidebar, which keeps track of what sites you have
       visited. To change how many days a site should be remembered, select
       &pref.menuPath; and select the Privacy panel.</p>