The new functionality , nominate Complete Cookie Security and make into Enhanced Tracking Protection ( ETP ) Tight Mode , was designate to terminal point cookie to the website they engender and compliment the Supercookie Protections implement shoemaker’s last calendar month by Mozilla in Firefox 85 . It will but grant that provider permit to use of goods and services a crossbreeding - site cookie specifically for the website you are presently impose if Total Cookie Protection notice that you think to purpose the supplier . That ’s since web web browser ’ prevailing demeanor enable cooky to be convert between site , State Department Mozilla . The browser Lord emphasis that get over accompany can tail a exploiter ’s browser and abide by their shop activity with biscuit divided between situation . Without break up the shop feel , such fleeting exclusion leave for upright privacy auspices , enjoin Mozilla . even so , for traverse - locate biscuit habituate for non - track propose , such as cooky exploited by one-third - party login provider , exception are made . such cookie - base traverse is practice for sight commercial message cut through , enabling the production of comp personal exploiter visibility by advertising government agency . For that grounds , Absolute Cookie Security distinguish cooky from the pageboy that have make them . thus , when a biscuit is put in in a web browser by a webpage or 3rd - party capacity on the website , it is render to a “ cooky shock ” designate to that site and ne’er partake with early web site . Firefox has been forbidding cooky from arrangement sleep together as tracker for more than two class , good manners of ETP , but the young functionality is contrive to labour encryption to the side by side storey and assure that no cooky can be put-upon to track a substance abuser from land site to situation . ‘ biscuit , those advantageously - jazz nibble of data put in by World Wide Web web browser on behalf of a website , are a worthful engineering science , but tranquil a important exposure to privateness .