In the table above, the columns represent different types of requests. The rows represent domains. Numbers (if recording is enabled) show how many requests of a given type the current tab tries to make to the given domain. Red cells are blocked, green cells are allowed. Light green cells are allowed indirectly, e.g. because they represent a sub-domain of an allowed domain. Grey cells are disabled.

By default, everything is blocked. You can click on a cell to allow it. You can also click on the domain or type to allow the complete row or column. There are also some special rows:

• inline: This row is in charge of blocking inline code, e.g. <script>-elements that are directly embedded into the HTML code. Note that some cells are disabled, e.g. there is no such thing as an "inline XHR".
• first-party: This row allows you to set global defaults for requests to the same domain as the page itself.
• sub-domains: If you allow a domain, all of its sub-domains are allowed along with it.