GreaseMonkey Hello World

Any ideas why this script isn't working?

Also, when I install the script the Name and Description field are blank?

//==UserScript==
//@name testName
//@namespace anonDeveloper
//@description This script will automagically blah blah blah
//@include *
//==/UserScript==
alert('Hello world!');

The script is located on my file system rather than s开发者_开发百科ome URI. Could that be causing the issue?

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It works for me in the latest Google Chrome (you didn't say which browsers you tested). However, in order for the name and description to correctly display, you need to add a space after each //:

// ==UserScript==
// @name testName
// @namespace anonDeveloper
// @description This script will automagically blah blah blah
// @include *
// ==/UserScript==
alert('Hello world!');