1 files changed, 25 insertions, 2 deletions
diff --git a/netwerk/mime/nsIMIMEInfo.idl b/netwerk/mime/nsIMIMEInfo.idl
index a7ffcfe513..97d7660932 100644
--- a/netwerk/mime/nsIMIMEInfo.idl
+++ b/netwerk/mime/nsIMIMEInfo.idl
@@ -53,19 +53,24 @@ interface nsIHandlerInfo : nsISupports {
     readonly attribute nsIMutableArray possibleApplicationHandlers;
 
     /**
-     * Indicates whether a default application handler exists,
+     * Indicates whether a default OS application handler exists,
      * i.e. whether launchWithFile with action = useSystemDefault is possible
      * and defaultDescription will contain usable information.
      */
     readonly attribute boolean hasDefaultHandler;
 
     /**
-     * A pretty name description of the associated default application. Only
+     * A pretty name description of the associated default OS application. Only
      * usable if hasDefaultHandler is true.
      */
     readonly attribute AString defaultDescription;
 
     /**
+     * The default OS application. Only usable if hasDefaultHandler is true.
+     */
+    readonly attribute nsIFile defaultExecutable;
+
+    /**
      * Launches the application with the specified URI, in a way that
      * depends on the value of preferredAction. preferredAction must be
      * useHelperApp or useSystemDefault.
@@ -281,6 +286,24 @@ interface nsILocalHandlerApp : nsIHandlerApp {
     readonly attribute unsigned long parameterCount;
 
     /**
+     * Asynchronously returns the pretty (user friendly) name of the
+     * executable.
+     *
+     * On Linux and Mac, this is the same as the name
+     * property. On Mac, that happens to be a nicer name than
+     * the executable's name without the file extension.
+     *
+     * On Windows, this name will be nicer, looked up from the
+     * registry when it exists and falling back to the FileDescription
+     * getVersionFieldInfo when the registry data doesn't exist.
+     * This has the side effect that the prettyName returned
+     * generally will match the text returned by defaultDescription in
+     * nsIHandlerInfo.
+     */
+    [implicit_jscontext]
+    Promise prettyNameAsync();
+
+    /**
      * Clears the current list of command line parameters.
      */
     void clearParameters();