Bug 514327: Detect outdated plugins and offer upgrade path (typo fix).

toolkit/locales/en-US/chrome/mozapps/update/updates.dtd

@@ -7,7 +7,7 @@
 <!ENTITY  updateCheck.label               "Looking for newer versions of &brandShortName;…">
 
 <!ENTITY  pluginupdatesfound.title        "Found Updates for Plugins">
-<!ENTITY  pluginupdatesfound.label        "Newer versions of one or more of your plugins where found.">
+<!ENTITY  pluginupdatesfound.label        "Newer versions of one or more of your plugins were found.">
 <!ENTITY  pluginupdateslink.label         "See how to upgrade your plugins.">
 
 <!ENTITY  noupdatesfound.title            "No Updates Found">