diff --git a/unpacked/extensions/MathMenu.js b/unpacked/extensions/MathMenu.js
index 7de5c8c09..293559d11 100644
--- a/unpacked/extensions/MathMenu.js
+++ b/unpacked/extensions/MathMenu.js
@@ -773,7 +773,7 @@
   MENU.Scale = function () {
     var HTMLCSS = OUTPUT["HTML-CSS"], nMML = OUTPUT.NativeMML, SVG = OUTPUT.SVG;
     var SCALE = (HTMLCSS||nMML||SVG||{config:{scale:100}}).config.scale;
-    var scale = prompt(_("ScaleMath", "Scale all mathematics (compared to surrounding text) by"),SCALE+"%");
+    var scale = prompt(_("ScaleMath","Scale all mathematics (compared to surrounding text) by"),SCALE+"%");
     if (scale) {
       if (scale.match(/^\s*\d+(\.\d*)?\s*%?\s*$/)) {
         scale = parseFloat(scale);
@@ -873,7 +873,7 @@
     SVG: {
       MSIE:    ["MSIESVGWarning",
                  "SVG is not implemented in Internet Explorer prior to " +
-                 "IE9, or when the browser is emulating IE8 or below. " +
+                 "IE9 or when it is emulating IE8 or below. " +
                  "Switching to SVG output will cause the mathemtics to " +
                  "not display properly."]
     }
diff --git a/unpacked/extensions/TeX/AMSmath.js b/unpacked/extensions/TeX/AMSmath.js
index c5bc4ce86..819716d50 100644
--- a/unpacked/extensions/TeX/AMSmath.js
+++ b/unpacked/extensions/TeX/AMSmath.js
@@ -460,7 +460,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
     },
     EndRow: function () {
       if (this.row.length != 1) {
-        TEX.Error(["MultipleRowsOneCol",
+        TEX.Error(["MultlineRowsOneCol",
                    "multline rows must have exactly one column"]);
       }
       this.table.push(this.row); this.row = [];
diff --git a/unpacked/jax/input/MathML/jax.js b/unpacked/jax/input/MathML/jax.js
index dcb3ef2d2..892d514d0 100644
--- a/unpacked/jax/input/MathML/jax.js
+++ b/unpacked/jax/input/MathML/jax.js
@@ -287,7 +287,7 @@
       return(this.parseDIV);
     },
     parserCreationError: function () {
-      alert(_("MathPlayer",
+      alert(_("CantCreateXMLParser",
         "MathJax can't create an XML parser for MathML.  Check that\n"+
         "the 'Script ActiveX controls marked safe for scripting' security\n"+
         "setting is enabled (use the Internet Options item in the Tools\n"+
diff --git a/unpacked/jax/input/TeX/jax.js b/unpacked/jax/input/TeX/jax.js
index 642a643cd..b942c5336 100644
--- a/unpacked/jax/input/TeX/jax.js
+++ b/unpacked/jax/input/TeX/jax.js
@@ -80,8 +80,8 @@
   
   var STACKITEM = STACK.Item = MathJax.Object.Subclass({
     type: "base",
-    closeError: ["ExtraCloseMissingOpen","Extra close brace or missing open brace"],
-    rightError: ["MissingLeftExtraRight","Missing \\left or extra \\right"],
+    closeError: /*_()*/ ["ExtraCloseMissingOpen","Extra close brace or missing open brace"],
+    rightError: /*_()*/ ["MissingLeftExtraRight","Missing \\left or extra \\right"],
     Init: function () {
       if (this.isOpen) {this.env = {}}
       this.data = [];
@@ -98,7 +98,7 @@
       if (item.type === "over" && this.isOpen) {item.num = this.mmlData(false); this.data = []}
       if (item.type === "cell" && this.isOpen) {
         if (item.linebreak) {return false}
-        TEX.Error(["Misplaced %1","Misplaced ",item.name]);
+        TEX.Error(["Misplaced","Misplaced %1",item.name]);
       }
       if (item.isClose && this[item.type+"Error"]) {TEX.Error(this[item.type+"Error"])}
       if (!item.isNotStack) {return true}
@@ -129,7 +129,7 @@
 
   STACKITEM.open = STACKITEM.Subclass({
     type: "open", isOpen: true,
-    stopError: ["ExtraOpenMissingClose","Extra open brace or missing close brace"],
+    stopError: /*_()*/ ["ExtraOpenMissingClose","Extra open brace or missing close brace"],
     checkItem: function (item) {
       if (item.type === "close") {
         var mml = this.mmlData();
@@ -155,7 +155,7 @@
   
   STACKITEM.subsup = STACKITEM.Subclass({
     type: "subsup",
-    stopError: ["MissingScript","Missing superscript or subscript argument"],
+    stopError: /*_()*/ ["MissingScript","Missing superscript or subscript argument"],
     checkItem: function (item) {
       var script = ["","subscript","superscript"][this.position];
       if (item.type === "open" || item.type === "left") {return true}
@@ -195,7 +195,7 @@
 
   STACKITEM.left = STACKITEM.Subclass({
     type: "left", isOpen: true, delim: '(',
-    stopError: ["ExtraLeftMissingRight", "Extra \\left or missing \\right"],
+    stopError: /*_()*/ ["ExtraLeftMissingRight", "Extra \\left or missing \\right"],
     checkItem: function (item) {
       if (item.type === "right") {
         var mml = MML.mfenced(this.data.length === 1 ? this.data[0] : MML.mrow.apply(MML,this.data));
@@ -1371,7 +1371,7 @@
     },
     MoveRoot: function (name,id) {
       if (!this.stack.env.inRoot)
-        {TEX.Error(["BadMoveRoot","%1 can appear only within a root"])}
+        {TEX.Error(["MisplacedMoveRoot","%1 can appear only within a root",name])}
       if (this.stack.global[id])
         {TEX.Error(["MultipleMoveRoot","Multiple use of %1",name])}
       var n = this.GetArgument(name);
@@ -1432,7 +1432,7 @@
           data = this.GetArgument(name),
           def = {attrNames:[]}, match;
       if (!MML[type] || !MML[type].prototype.isToken)
-        {TEX.Error(["NotMathMLToken", "%1 is not a token element",type])}
+        {TEX.Error(["NotMathMLToken","%1 is not a token element",type])}
       while (attr !== "") {
         match = attr.match(/^([a-z]+)\s*=\s*('[^']*'|\"[^"]*"|[^ ]*)\s*/i);
         if (!match)
@@ -1589,7 +1589,7 @@
       this.string = this.AddArgs(macro,this.string.slice(this.i));
       this.i = 0;
       if (++this.macroCount > TEX.config.MAXMACROS) {
-        TEX.Error(["MaxMacroSub",
+        TEX.Error(["MaxMacroSub1",
                    "MathJax maximum macro substitution count exceeded; " +
                    "is there a recursive macro call?"]);
       }
@@ -1866,7 +1866,7 @@
          case '\\':  this.i++; break;
          case '}':
           if (parens-- <= 0) {
-            TEX.Error(["ExtraCloseBrace",
+            TEX.Error(["ExtraCloseLooking",
                        "Extra close brace while looking for %1","']'"]);
           }
           break;   
@@ -1928,7 +1928,7 @@
          case '{':   parens++; break;
          case '}':
           if (parens == 0) {
-            TEX.Error(["ExtraCloseBrace",
+            TEX.Error(["ExtraCloseLooking",
                        "Extra close brace while looking for %1",token])
           }
           parens--;
diff --git a/unpacked/jax/output/NativeMML/jax.js b/unpacked/jax/output/NativeMML/jax.js
index e982b3f13..914ec349d 100644
--- a/unpacked/jax/output/NativeMML/jax.js
+++ b/unpacked/jax/output/NativeMML/jax.js
@@ -141,10 +141,6 @@
           //
           //  If that fails, give an alert about security settings
           //
-          // Localization: this seems to use "\n" to force new lines in the
-          // dialog: is it really necessary? If so, we need a localization note
-          // to explain that to localizers. Handling of concatenation might
-          // be an additional difficulty for the string extractor.
           alert(MathJax.Localization._(["MathML", "MathPlayer"],
                 "MathJax was not able to set up MathPlayer.\n\n"+
                 "If MathPlayer is not installed, you need to install it first.\n"+
diff --git a/unpacked/localization/fr/MathMenu.js b/unpacked/localization/fr/MathMenu.js
index 3c7e3484d..f4cf4d3b8 100644
--- a/unpacked/localization/fr/MathMenu.js
+++ b/unpacked/localization/fr/MathMenu.js
@@ -78,6 +78,16 @@ MathJax.Localization.addTranslation("fr","MathMenu",{
       "toutes les fonctionnalités requises par MathJax, certaines " +
       "expressions pourront donc ne pas s'afficher correctement.",
 
+    LoadURL:
+      "Load translation data from this URL:",
+      
+    BadURL:
+      "The URL should be for a javascript file that defines MathJax translation data.  " +
+      "Javascript file names should end with '.js'",
+
+    BadData:
+     "Failed to load translation data from %1",
+     
     SwitchAnyway:
       "Êtes vous certain de vouloir changer le mode de rendu ?\n\n" +
       "Appuyez sur OK pour valider ou Annuler pour continuer avec le " +
diff --git a/unpacked/localization/fr/TeX.js b/unpacked/localization/fr/TeX.js
index f23de25c3..a7358e1e6 100644
--- a/unpacked/localization/fr/TeX.js
+++ b/unpacked/localization/fr/TeX.js
@@ -75,8 +75,8 @@ MathJax.Localization.addTranslation("fr","TeX",{
     MisplacedMoveRoot:
       "La commande %1 n'est autorisée qu'à l'intérieur d'une racine",
 
-    MultipleMoveRoot:
-      "Commande %1 redondante",
+    MultipleCommand:
+      "Usage multiple de la commande %1",
 
     IntegerArg:
       "L'argument de la commande %1 doit être un entier",
@@ -120,8 +120,8 @@ MathJax.Localization.addTranslation("fr","TeX",{
     ExtraClose:
       "Accolade fermante non attendue",
 
-    ExtraCloseInBrackets:
-      "Accolade fermante non attendue avant le crochet fermant.",
+    ExtraCloseLooking:
+      "Extra close brace while looking for %1"
 
     MissingCloseBracket:
       "Impossible de trouver le crochet fermant pour l'argument de la commande %1",
@@ -132,9 +132,6 @@ MathJax.Localization.addTranslation("fr","TeX",{
     MissingDimOrUnits:
       "Dimension ou unité manquante pour la commande %1",
 
-    ExtraCloseBraceInUpTo:
-      "Accolade fermante non attendue avant la commande %1",
-
     TokenNotFoundForCommand:
       "Impossible de trouver la commande %1 pour la commande %2",
 
@@ -171,7 +168,7 @@ MathJax.Localization.addTranslation("fr","TeX",{
     ErroneousNestingEq:
       "Emboitement incorrect des structures d'équation",
 
-    MultipleRowsOneCol:
+    MultlineRowsOneCol:
       "Les lignes multiples doivent avoir exactement une colonne",
 
     NoClosingDelim:
diff --git a/unpacked/localization/fr/fr.js b/unpacked/localization/fr/fr.js
index 8c0fd07d1..f8c21e277 100644
--- a/unpacked/localization/fr/fr.js
+++ b/unpacked/localization/fr/fr.js
@@ -1,4 +1,5 @@
 MathJax.Localization.addTranslation("fr",null,{
+  menuTitle: "Fran\u00E7ais",
   isLoaded: true,
   domains: {
     "_": {