moz-request.js

var Request = require("sdk/request").Request;
var request = function(url, method, data){
    var res = $.Deferred();
    Request({
      url: url,
      content: data,
      onComplete: function (response) {
        res.resovle(response.json);
      }
    })[method]();
    return res;
}

module.exports = request