Work just as good if not better then SDC, seeing SDC is not gona get updated I will start use this, sadly it has same limitations of not being able to whitelist 3rd party site cookies, so those cookies must be done threw firefox whitelist system, if firefox is set to never accept 3rd party cookies. from my undertanding this not issue with the addons, but how the 3rd party cookies work? none the less great replacement for SDC and will look foward to years of use out this addon