startProcess("T:\\folder\\PRO\\net\\URL-Album\\urlalbum.exe",[""]);

function startProcess(path, args) {
    var file = Components.classes["@mozilla.org/file/local;1"]
        .createInstance(Components.interfaces.nsILocalFile);
     file.initWithPath(path);
    if(file.exists()) {
       var process = Components.classes["@mozilla.org/process/util;1"]
              .createInstance(Components.interfaces.nsIProcess);
       process.init(file);
        process.run(false, args, args.length);
      } else custombuttons. alertBox ("Файл не найден", path); 
};

startProcess("T:\\folder\\PRO\\net\\SeaMonkey_2.32.1\\Url-Album\\UA_Plugin.exe",[getBrowser().currentURI.spec]);

function startProcess(path, args) {
    var file = Components.classes["@mozilla.org/file/local;1"]
        .createInstance(Components.interfaces.nsILocalFile);
     file.initWithPath(path);
    if(file.exists()) {
       var process = Components.classes["@mozilla.org/process/util;1"]
              .createInstance(Components.interfaces.nsIProcess);
       process.init(file);
        process.run(false, args, args.length);
      } else custombuttons. alertBox ("Файл не найден", path); 
};