CookieSync is an add-on for Chrome that makes your localhost cookies available to your local code. The cookies are stored in an encrypted way.

Once the add-on is installed, it can be activated or deactivated at any time. There is no need to do anything else; it will work as soon as you turn it on.

In order to enable the addon, go to Chrome Settings in Settings. In the Advanced Settings section, you need to tick the box which says 'Always allow localhost access'.

You can also customize the domains that the addon will take into consideration.