Add an about:vimperator page.

vimperator/components/about-handler.js

@@ -0,0 +1,33 @@
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+function AboutHandler() {}
+
+AboutHandler.prototype = {
+
+    classDescription: "About Vimperator Page",
+
+    classID: Components.ID("81495d80-89ee-4c36-a88d-ea7c4e5ac63f"),
+
+    contractID: "@mozilla.org/network/protocol/about;1?what=vimperator",
+
+    QueryInterface: XPCOMUtils.generateQI([Ci.nsIAboutModule]),
+
+    newChannel: function (uri)
+    {
+        let channel = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService)
+                          .newChannel("chrome://vimperator/content/about.html", null, null);
+
+        channel.originalURI = uri;
+
+        return channel;
+    },
+
+    getURIFlags: function (uri) Ci.nsIAboutModule.ALLOW_SCRIPT,
+};
+
+function NSGetModule(compMgr, fileSpec) XPCOMUtils.generateModule([AboutHandler]);
+
+// vim: set fdm=marker sw=4 ts=4 et: