A cookie is a piece of data typically used to store information about the user and is stored on the user’s computer. In most browsers each cookie is stored as a small file, but in Firefox they are stored all together in a single file. Cookies are represented as key-value pairs, and you can take advantage of the keys to read, write, or delete cookies.
To work with the code examples provided in this article, you should have Visual Studio 2019 installed in your system. If you don’t already have a copy, you can .