That doesn't turn them off, that just consents to everything, including types of tracking that cookie blockers can't get rid of.

Please use consent-o-matic instead.

From their site: "In most cases, it just blocks or hides cookie related pop-ups. When it's needed for the website to work properly, it will automatically accept the cookie policy for you (sometimes it will accept all and sometimes only necessary cookie categories, depending on what's easier to do). It doesn't delete cookies."

I was assuming they do a lot more hiding (which means declining) than accepting (if at all in practice). Do you have more information about this?

Note that that is a pro-tracking extension.