If you tell Chrome to block JavaScript on all sites by default, when you browse to a site that uses JavaScript, the upper right corner of the browser displays a box with a red “X” through it.

Chrome also includes similar script- and Flash blocking functionality that seems designed to minimize some of these challenges by providing fewer options.

However, some APIs, including ' chrome.webRequest ,' still use JavaScript bindings, which was the root cause of the bug.

Google on Feb. 15 turned on the browser ad-blocking feature it's been talking about for a year. Here's how it works and why Google acted.

Google still plans to cripple ad-blocking in Chrome, but enterprises will be exempt The tech giant is considering making an exception to its stop on ad blockers for enterprise.