Bug 568691 - Convert existing JS components to use NSGetFactory and add manifest files for them. In a followup we will link the .manifest files together at packaging time. This patch was developed on Linux: Windows and Mac may require additional changes.

browser/components/shell/src/nsSetDefaultBrowser.js

@@ -57,16 +57,8 @@ nsSetDefaultBrowser.prototype = {
 
   helpInfo: "  -setDefaultBrowser Set this app as the default browser.\n",
 
-  classDescription: "Default Browser Cmdline Handler",
-  contractID: "@mozilla.org/browser/default-browser-clh;1",
   classID: Components.ID("{F57899D0-4E2C-4ac6-9E29-50C736103B0C}"),
   QueryInterface: XPCOMUtils.generateQI([Ci.nsICommandLineHandler]),
-  _xpcom_categories: [{
-    category: "command-line-handler",
-    entry: "m-setdefaultbrowser"
-  }]
-}
+};
 
-function NSGetModule(compMgr, fileSpec) {
-  return XPCOMUtils.generateModule([nsSetDefaultBrowser]);
-}
+var NSGetFactory = XPCOMUtils.generateNSGetFactory([nsSetDefaultBrowser]);