absolutely fantastic ! who does not hate those darn spam notes by evil corporations. However, it causes trouble in Fedora / Red Hat "cockpit" (makes "services" etc. invisible ) so it needs to be deactivated while using cockpit. This add-on is so great, moz://a resorts to censoring reviews et cetera about all add-on’s critical of the ’rona hysteria which is ongoing. That is 100% proof of excellence since "the powers that should not be" are always wrong, as we know. They fear the truth! https://addons.mozilla.org/en-US/firefox/collections/16083072/ice/