--- a/dom/webidl/Console.webidl
+++ b/dom/webidl/Console.webidl
@@ -33,16 +33,17 @@ interface Console {
 
 // This is used to propagate console events to the observers.
 dictionary ConsoleEvent {
   (unsigned long or DOMString) ID;
   (unsigned long or DOMString) innerID;
   DOMString level = "";
   DOMString filename = "";
   unsigned long lineNumber = 0;
+  unsigned long columnNumber = 0;
   DOMString functionName = "";
   double timeStamp = 0;
   sequence<any> arguments;
 
   // This array will only hold strings or null elements.
   sequence<any> styles;
 
   boolean private = false;
@@ -62,16 +63,17 @@ dictionary ConsoleProfileEvent {
   DOMString action = "";
   sequence<any> arguments;
 };
 
 // This dictionary is used to manage stack trace data.
 dictionary ConsoleStackEntry {
   DOMString filename = "";
   unsigned long lineNumber = 0;
+  unsigned long columnNumber = 0;
   DOMString functionName = "";
   unsigned long language = 0;
 };
 
 dictionary ConsoleTimerStart {
   DOMString name = "";
   double started = 0;
 };