nsIWebBrowserChrome2 is an extension to nsIWebBrowserChrome.
[scriptable, uuid(2585a7b1-7b47-43c4-bf17-c6bf84e09b7b)]
interface nsIWebBrowserChrome2 : nsIWebBrowserChrome

Methods

 Called when the status text in the chrome needs to be updated.  This
 method may be called instead of nsIWebBrowserChrome::SetStatus.  An
 implementor of this method, should still implement SetStatus.

 @param statusType
        Indicates what is setting the text.
 @param status
        Status string.  Null is an acceptable value meaning no status.
 @param contextNode 
        An object that provides context pertaining to the status type.
        If statusType is STATUS_LINK, then statusContext may be a DOM
        node corresponding to the source of the link.  This value can
        be null if there is no context.
void setStatusWithContext(in unsigned long statusType, in AString statusText, in nsISupports statusContext)