Bug 1435034 - Display of default fonts is broken in preferences after Bug 1344990 and Bug 1378366. r=frg

suite/locales/en-US/chrome/common/pref/prefutilities.properties

@@ -27,7 +27,9 @@ choosesound=Choose a sound
 
 SoundFiles=Sounds
 
-labelDefaultFont=Default (%font_family%)
+# LOCALIZATION NOTE (labelDefaultFont): %S = font name
+labelDefaultFont=Default (%S)
+labelDefaultFontUnnamed=Default
 
 syncUnlink.title=Do you want to unlink your device?
 syncUnlink.label=This device will no longer be associated with your Sync account. All of your personal data, both on this device and in your Sync account, will remain intact.