diff --git a/content/html/document/test/browser_bug592641.js b/content/html/document/test/browser_bug592641.js
index 4e559d05d5d..96b432c42dc 100644
--- a/content/html/document/test/browser_bug592641.js
+++ b/content/html/document/test/browser_bug592641.js
@@ -17,7 +17,7 @@ function test() {
 function checkTitle(title) {
 
   ctx.loadsDone++;
-  ok(/^bug592641_img\.jpg \(JPEG Image, 1500x1500 pixels\)/.test(title),
+  ok(/^bug592641_img\.jpg \(JPEG Image, 1500\u00A0\u00D7\u00A01500 pixels\)/.test(title),
      "Title should be correct on load #" + ctx.loadsDone);
 }
 
diff --git a/dom/locales/en-US/chrome/layout/MediaDocument.properties b/dom/locales/en-US/chrome/layout/MediaDocument.properties
index 9536424d303..477005ef54a 100644
--- a/dom/locales/en-US/chrome/layout/MediaDocument.properties
+++ b/dom/locales/en-US/chrome/layout/MediaDocument.properties
@@ -43,9 +43,9 @@
 #LOCALIZATION NOTE (ImageTitleWithNeitherDimensionsNorFile): first %S is type
 #LOCALIZATION NOTE (MediaTitleWithFile): first %S is filename, second %S is type
 #LOCALIZATION NOTE (MediaTitleWithNoInfo): first %S is type
-ImageTitleWithDimensionsAndFile=%S (%S Image, %Sx%S pixels)
+ImageTitleWithDimensionsAndFile=%S (%S Image, %S\u00A0\u00D7\u00A0%S pixels)
 ImageTitleWithoutDimensions=%S (%S Image)
-ImageTitleWithDimensions=(%S Image, %Sx%S pixels)
+ImageTitleWithDimensions=(%S Image, %S\u00A0\u00D7\u00A0%S pixels)
 ImageTitleWithNeitherDimensionsNorFile=(%S Image)
 MediaTitleWithFile=%S (%S Object)
 MediaTitleWithNoInfo=(%S Object)