cMenuOpener.uc.js

(function addURIOpenerToCMenu(opts){
  var mi = document.createElement('menuitem');
  mi.setAttribute('label', opts.label);
  mi.setAttribute('accesskey', opts.accesskey);
  mi.opener = opts.opener;
  mi.run = function run(){
    var {path, args} = this.opener;
    with(gContextMenu) var uri = isTextSelected
      ? getSelectedURI()
      : (onLink ? linkURI : gBrowser.currentURI).spec;
    var app = Components.classes['@mozilla.org/file/local;1']
      .createInstance(Components.interfaces.nsILocalFile);
    app.initWithPath(path);
    var proc = Components.classes['@mozilla.org/process/util;1']
      .createInstance(Components.interfaces.nsIProcess);
    proc.init(app);
    proc.run(false, args.concat(uri), args.length + 1);
  };
  mi.setAttribute('oncommand', 'this.run()');
  document.getElementById('contentAreaContextMenu')
    .addEventListener('popupshowing', function pop(){ with(gContextMenu){
      this.insertBefore(mi, document.getElementById(
        'context-sep-'+ (onLink         ? 'open' :
                         isTextSelected ? 'properties' : 'viewbgimage')));
      var h = mi.hidden = !onLink && (onImage || onTextInput);
      mi.setAttribute('disabled', h);
    }}, false);
  function getSelectedURI(){
    var txt = document.commandDispatcher.focusedWindow
      .getSelection().toString().replace(/^\s+|\s+$/g, '');
    return /^(?:f|ht)tps?:\/\/./.test(txt) ? txt : 'http://'+ txt;
  }
  return arguments.callee;
})({
  label: 'flvpop',
  accesskey: 'f',
  opener: {
    path: 'C:\\Windows\\System32\\mshta.exe',
    args: ['C:\\Tools\\HTA\\flvpop.hta'],
  },
})({
  label: 'Sleipnir',
  accesskey: 'p',
  opener: {
    path: 'C:\\Tools\\Sleipnir\\bin\\Sleipnir.exe',
    args: [],
  },
});