http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/3.0.34/user-manual/actions-file.html
Actions can be used to block anything you want, including ads, banners, or just some obnoxious URL whose content
you would rather not see. Cookies can be accepted or rejected, or accepted only during the current browser session
(i.e. not written to disk), content can be modified, some JavaScripts tamed, user-tracking fooled, and much more.