With all the fuss lately concerning privacy, from hacked sites to social networks selling data, it is only reasonable to be anxious with our privacy. One radical way to protect it is to disable cookies in our browsers.
Of course keep in mind that cookies are not always used to track and profile users, but actually they are often necessary for the legitimate technical function of their respective sites and if you totality disable them, those site may stop working correctly. Therefore use this guide with caution (and if you encounter problems just follow it again, but reverting the relative settings).
Disable cookies in Google Chrome
Disable cookies in Mozilla Firefox
To disable cookies in Mozilla Firefox, open the Settings page and go to the Privacy section.
From there select Use custom settings for history and then deselect Accept cookies from sites.
Disable cookies in Opera
To disable cookies in Opera, open the Opera menu and go to the Settings->Preferences.
That of course will stop further cookies. To delete already created cookies, from the same page select Manage cookies, select each cookie and click Delete.