Today, cookies are used by almost all websites and are in many cases necessary to provide a specific service on the website.
A cookie is a small data file which is stored on the user's IT equipment (such as a PC, tablet, smartphone, etc.) allowing the website to recognize the equipment. Cookies may for instance be used for the purpose of preparing statistics of the users' website use and for optimization of website contents. A cookie is a passive file and cannot collect information from the user's computer or spread computer virus or other harmful programs. Some cookies are placed by websites (third parties) other than the one stated in browser's address line (the URL). The contents of such cookies may be of a general nature, but they may also be, for example, analytical tools or embedded comment fields. This means that cookies are stored from parties other than the one owning the website.
Some cookies are created temporarily and expire at the end of the user session when the browser is closed (session cookies). Other cookies are stored on the user's IT equipment for a longer period of time (persistent cookies). When the user revisits a website, new session cookies will be placed in the temporary memory, whereas a persistent cookies will be renewed.
You may choose to configure your browser to accept all cookies, reject all cookies, notify you when cookies are issued, provide you with information on their period of validity and content, enable you to refuse to store the cookies on your device, and delete your cookies regularly.
Should you want to disable cookies, you may find the links to some of the most popular web browsers below:
Mozilla Firefox: please visit https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences
Internet Explorer: please visit http://windows.microsoft.com/en-gb/internet-explorer/delete-manage-cookies#ie=ie-11
Google Chrome: please visit https://support.google.com/chrome/answer/95647?hl=en
Safari: please visit http://support.apple.com/kb/HT1677