Reverting accidental change from bug 269460.

browser/locales/en-US/chrome/browser/browser.dtd

@@ -106,7 +106,7 @@
 <!ENTITY historySidebarCmd.accesskey    "s">
 <!ENTITY historySidebarCmd.commandKey   "h">
 
-<!ENTITY toolsMenu.label "工具">
+<!ENTITY toolsMenu.label              "Tools">
 <!ENTITY toolsMenu.accesskey          "T"> 
 
 <!ENTITY keywordfield.label           "Add a Keyword for this Search...">