The day for advertisers is over. According to the latest news, the future PC version of Firefox browser will default to prevent Third-party cookies. Firefox (Developer ' Channel), released last week, has added this feature. This feature will soon be spread across all users of the Firefox browser. Until now, only Apple's Safari browser would have blocked Third-party Cookies by default.
Cookies are a technique that allows a Web server to store small amounts of data on a client's hard disk or memory, or to read data from a client's hard disk. When you browse a website, a very small text file is placed on your hard drive by the Web server, and it can record your user ID, password, browsed pages, time of stay, and so on. When you come to the website again, the website can make corresponding action by reading Cookies and knowing your relevant information.
Cookies are generally used by advertisers as the main way to track user data, and with cookies, advertisers provide personalized advertising for users ' needs.
Previously, most Web browsers would default to add a "Do not track" button to allow netizens to control the tracking of their privacy information. When a user presents a "Do Not track" request, a browser with the "Do Not track" feature adds a "header" (headers) to the HTTP data transfer, which indicates to the server on the commercial web site that the user does not want to be tracked, so that the site following the rule The user's personal information is not tracked to advertise.
But this way is soft, if the site does not obey the rules, then the user data will still be crawled. And this Firefox aurora by default to prevent Third-party tracking cookies, then completely blocked the advertising business, attitude is very tough, so particularly aroused the attention of the advertising industry.