Many websites save so called cookies on your computer.
Typically, cookies are very useful. Your personal settings are saved with them, allowing you, for example, to login to your webmail.
Thanks to cookies, the authors of web pages know how many internet users visit their page, what do they read and what they avoid.
Cookies can also be used to collect information about you for marketing purposes. For example, if you frequently enter a site about books, you might see more bookstores' ads.
Fortunately, if you think that the presence of cookies violates your privacy, you can always turn them off, or for a particular site or in general for all calls from your browser.
Below is a list of instructions how to turn cookies off in different browsers:
For mobile devices: