How to clear a web browser's cache and cookies
How to clear cache:
Each time you access a page through your web browser, the browser caches (stores) it. By doing this, the browser doesn't have to newly retrieve files, including any images, from the remote web site each time you click Back or Forward.

How to delete cookies:
A cookie is a file created by a web browser, at the request of a web site, that is then stored on a computer. These files typically store user-specific information such as selections in a form, shopping cart contents, or authentication data.

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