If you have trouble logging in, you probably need to adjust the settings on your browser so that cookies are enabled for hello-world.com:

Internet Explorer

1. Click the Tools menu.
2. Select Internet Options.
3. Click the Privacy tab.
4. Click Sites, and put in http://www.hello-world.com as the website and select Allow.
5. Click the OK button.

Firefox

1. Click the Tools menu. (On a Mac, click the Firefox menu.)
2. Select Options. (On a Mac, select Preferences.)
3. Click the Privacy tab.
4. Select the 'Accept cookies from sites' checkbox or click Exceptions and put in http://www.hello-world.com as the website and select Allow.
5. Click the OK button.

Safari

1. Click the Safari menu.
2. Select Preferences.
3. Click Security.
4. In the 'Accept Cookies' section, select Always.

What are cookies? Cookies are files created by websites you've visited to store browsing information, such as your subscription information. If you are logged in, hello-world also records what activities you have done. You can use that information to see what you have done, and your grade on some quizes. Please read our privacy policy if you have any questions about this.