Some people prefer not to allow cookies, which is why most browsers give you the ability to manage cookies to suit you. In some browsers you can set up rules to manage cookies on a site-by-site basis, giving you more fine-grained control over your privacy. What this means is that you can disallow cookies from all sites except those that you trust.
Browser manufacturers provide help pages relating to cookie management in their products. Please see below for more information.
For other browsers, please consult the documentation that your browser manufacturer provides.
You can opt out of interest-based targeting provided by participating ad servers through the Digital Advertising Alliance (http://optout.aboutads.info/). In addition, on your iPhone, iPad or Android, you can change your device settings to control whether you see online interest-based ads.
If you limit the ability of websites and applications to set cookies, you may worsen your overall user experience and/or lose the ability to access the services, since it will no longer be personalized to you. It may also stop you from saving customized settings, like login information.