For those that don’t know, Firefox has in-built support for automatically rejecting cookies and blocking the cookie banners from popping up.

To enable this feature, go to about:config, and perform the following:

  • change cookiebanners.service.mode from 0 to 2

To have this functionality in Private browsing mode, you should also:

  • change cookiebanners.service.mode.privateBrowsing from 0 to 2.

All Power to the People!

edit: (credit for this information goes to this lemming). Apparently, mode 2 means reject all or fall back to accept all if there is no Reject All button. Mode 1 only hits a Reject All button if available but ignores others.

  • Most sites don’t even give you an option to reject the “functional” cookies. The only degradation of experience you’ll get by “rejecting all” (which doesn’t reject functional cookies) in most cases would be less relevant ads. Those who are privacy-minded generally prefer “reject all”.