How to open the mobile phone Cookie: 1. The browser comes with a switch that has not been opened for the time being. When logging in to some websites, it will automatically prompt whether to save the password, and click Save. 2. Cookie is a technology that allows the website server to store a small amount of data in the client's hard disk or memory, or read data from the client's hard disk. Cookie is a very small text file placed on your hard disk by the Web server when you browse a website. It can record your user ID, password, the pages you visited, the time you stayed, and other information. When you come to the website again, the website can read the Cookie and know your relevant information, so that you can take corresponding actions, such as displaying a welcome slogan on the page, or allowing you to log in directly without entering your ID and password. This answer is applicable to all OPPO models.