diff --git a/calendar/base/modules/calExtract.jsm b/calendar/base/modules/calExtract.jsm
index 99aec81dcc..819e10eb5b 100644
--- a/calendar/base/modules/calExtract.jsm
+++ b/calendar/base/modules/calExtract.jsm
@@ -144,10 +144,7 @@ Extractor.prototype = {
             let spellchecker = Cc["@mozilla.org/spellchecker/engine;1"]
                                  .getService(Ci.mozISpellCheckingEngine);
 
-            let arr = {};
-            let cnt = {};
-            spellchecker.getDictionaryList(arr, cnt);
-            let dicts = arr.value;
+            let dicts = spellchecker.getDictionaryList();
 
             if (dicts.length == 0) {
                 cal.LOG("[calExtract] There are no dictionaries installed and " +
diff --git a/mail/components/compose/content/MsgComposeCommands.js b/mail/components/compose/content/MsgComposeCommands.js
index 3de1de3706..850e38f73e 100644
--- a/mail/components/compose/content/MsgComposeCommands.js
+++ b/mail/components/compose/content/MsgComposeCommands.js
@@ -2348,11 +2348,9 @@ function getValidSpellcheckerDictionary(draftLanguage) {
   let prefValue = Services.prefs.getCharPref("spellchecker.dictionary");
   let spellChecker = Cc["@mozilla.org/spellchecker/engine;1"]
                        .getService(Ci.mozISpellCheckingEngine);
-  let o1 = {};
-  let o2 = {};
-  spellChecker.getDictionaryList(o1, o2);
-  let dictList = o1.value;
-  let count    = o2.value;
+
+  let dictList = spellChecker.getDictionaryList();
+  let count    = dictList.length;
 
   if (count == 0) {
     // If there are no dictionaries, we can't check the value, so return it.
diff --git a/mail/components/preferences/compose.js b/mail/components/preferences/compose.js
index e7022bfd07..1aa40ec753 100644
--- a/mail/components/preferences/compose.js
+++ b/mail/components/preferences/compose.js
@@ -185,16 +185,12 @@ var gComposePane = {
   initLanguageMenu() {
     var languageMenuList = document.getElementById("languageMenuList");
     this.mSpellChecker = Cc["@mozilla.org/spellchecker/engine;1"].getService(Ci.mozISpellCheckingEngine);
-    var o1 = {};
-    var o2 = {};
 
     // Get the list of dictionaries from
     // the spellchecker.
 
-    this.mSpellChecker.getDictionaryList(o1, o2);
-
-    var dictList = o1.value;
-    var count    = o2.value;
+    var dictList = this.mSpellChecker.getDictionaryList();
+    var count    = dictList.length;
 
     // if we don't have any dictionaries installed, disable the menu list
     languageMenuList.disabled = !count;
diff --git a/suite/components/nsSuiteGlue.js b/suite/components/nsSuiteGlue.js
index 49d89926e1..1deacf7594 100644
--- a/suite/components/nsSuiteGlue.js
+++ b/suite/components/nsSuiteGlue.js
@@ -1162,9 +1162,7 @@ SuiteGlue.prototype = {
 
     var spellChecker = Cc["@mozilla.org/spellchecker/engine;1"]
                          .getService(Ci.mozISpellCheckingEngine);
-    var o1 = {};
-    spellChecker.getDictionaryList(o1, {});
-    var dictList = o1.value;
+    var dictList = spellChecker.getDictionaryList();
     // If the preference contains an invalid dictionary, set it to a valid
     // dictionary, any dictionary will do.
     if (dictList.length && dictList.indexOf(prefValue) < 0)
diff --git a/suite/components/pref/content/pref-spelling.js b/suite/components/pref/content/pref-spelling.js
index 6176dc05dc..6c214af3fc 100644
--- a/suite/components/pref/content/pref-spelling.js
+++ b/suite/components/pref/content/pref-spelling.js
@@ -21,14 +21,9 @@ function InitLanguageMenu() {
   var spellChecker = Cc["@mozilla.org/spellchecker/engine;1"]
                        .getService(Ci.mozISpellCheckingEngine);
 
-  var o1 = {};
-  var o2 = {};
-
   // Get the list of dictionaries from the spellchecker.
-  spellChecker.getDictionaryList(o1, o2);
-
-  var dictList = o1.value;
-  var count    = o2.value;
+  var dictList = spellChecker.getDictionaryList();
+  var count    = dictList.length;
 
   // If dictionary count hasn't changed then no need to update the menu.
   if (gDictCount == count)
diff --git a/suite/mailnews/components/compose/content/MsgComposeCommands.js b/suite/mailnews/components/compose/content/MsgComposeCommands.js
index e4854bbe6c..e04d925efc 100644
--- a/suite/mailnews/components/compose/content/MsgComposeCommands.js
+++ b/suite/mailnews/components/compose/content/MsgComposeCommands.js
@@ -2056,14 +2056,9 @@ function InitLanguageMenu()
 
   var spellChecker = Cc["@mozilla.org/spellchecker/engine;1"]
                        .getService(mozISpellCheckingEngine);
-  var o1 = {};
-  var o2 = {};
-
   // Get the list of dictionaries from the spellchecker.
-  spellChecker.getDictionaryList(o1, o2);
-
-  var dictList = o1.value;
-  var count    = o2.value;
+  var dictList = spellChecker.getDictionaryList();
+  var count    = dictList.length;
 
   // If dictionary count hasn't changed then no need to update the menu.
   if (sDictCount == count)