--- a/browser/components/places/content/bookmarksSidebar.xul
+++ b/browser/components/places/content/bookmarksSidebar.xul
@@ -7,23 +7,26 @@
 <?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
 <?xml-stylesheet href="chrome://browser/skin/places/places.css"?>
 
 <!DOCTYPE page [
 <!ENTITY % placesDTD SYSTEM "chrome://browser/locale/places/places.dtd">
 %placesDTD;
 <!ENTITY % editMenuDTD SYSTEM "chrome://global/locale/editMenuOverlay.dtd">
 %editMenuDTD;
+<!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd">
+%browserDTD;
 ]>
 
 <page id="bookmarksPanel"
       xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
       xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
       onload="init();"
-      onunload="PlacesUIUtils.setMouseoverURL('', window);">
+      onunload="PlacesUIUtils.setMouseoverURL('', window);"
+      aria-label="&bookmarksButton.label;">
 
   <script type="application/javascript"
           src="chrome://browser/content/places/bookmarksSidebar.js"/>
   <script type="application/javascript"
           src="chrome://global/content/globalOverlay.js"/>
   <script type="application/javascript"
           src="chrome://browser/content/utilityOverlay.js"/>
   <script type="application/javascript"><![CDATA[

--- a/browser/components/places/content/historySidebar.xul
+++ b/browser/components/places/content/historySidebar.xul
@@ -7,23 +7,26 @@
 <?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
 <?xml-stylesheet href="chrome://browser/skin/places/places.css"?>
 
 <!DOCTYPE page [
 <!ENTITY % placesDTD SYSTEM "chrome://browser/locale/places/places.dtd">
 %placesDTD;
 <!ENTITY % editMenuDTD SYSTEM "chrome://global/locale/editMenuOverlay.dtd">
 %editMenuDTD;
+<!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd">
+%browserDTD;
 ]>
 
 <page id="history-panel"
       orient="vertical"
       xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
       onload="HistorySidebarInit();"
-      onunload="PlacesUIUtils.setMouseoverURL('', window);">
+      onunload="PlacesUIUtils.setMouseoverURL('', window);"
+      aria-label="&historyButton.label;">
 
   <script type="application/javascript"
           src="chrome://browser/content/places/historySidebar.js"/>
   <script type="application/javascript"
           src="chrome://global/content/globalOverlay.js"/>
   <script type="application/javascript"
           src="chrome://browser/content/utilityOverlay.js"/>
   <script type="application/javascript"><![CDATA[