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Description and use of cookies
Cookies are text files that contain information pack stored on your computer or mobile device every time you visit an online site through a browser. At each subsequent visit the browser sends these cookies to the website that originated them. Cookies allow sites to remember certain information to allow the user to browse online quickly and easily.
There are two main types of cookies: session cookies and permanent cookies. A temporary cookie is stored only for the duration of the current session and is removed from the computer at the end of the session: this closure can be caused by a specific command, from closing the browser or from the use of a URL other than that of the site that generated the cookie.
A permanent cookie remains stored as a file on your computer even after you close your browser and can be read by the website the next time you visit the site.
Cookies are used for different purposes, such as:
- keep track of the session to simplify future use of the site and detect whether a registration procedure has been activated;
- conduct research and diagnostic activities.
How to disable and delete cookies
In case you want to block cookies you must remember that this process may have a negative impact on the usability of some websites.
Most browsers allow you to refuse/accept cookies. Below we report some practical information to disable cookies with major browsers.
INTERNET EXPLORER 9
To block cookies from all websites:
- Open the Internet Explorer window.
- Click on “Tools” and then on “Internet Options”.
- Click the “Privacy” tab and in “Settings” move the slider up to block all cookies or down to allow them all and then click “OK”.
Alternatively, the new function of Internet Explorer Inprivate Browsing allows the user to browse the net without leaving traces from the sites visited (including cookies).
To remove previously stored cookies:
- Open the Internet Explorer window.
- Click the “Tools” button, select “Security” and then click “Delete History explorations”.
- Select the check box “Cookies” and then click “Delete”.
GOOGLE CHROME
To block cookies from all websites:
- Open the Google Chrome window.
- Click the “Settings” icon at the top right of the menu.
- Select the “Settings” item.
- At the bottom of the page, click “Show advanced settings”.
- In the “Privacy” section, click “Content settings”.
- Select “Prevent sites from setting data”.
To remove previously stored cookies:
- Select “Clear browsing data” to clear all traces of the sites visited.
- Select “Clear download history” to delete the archive of downloaded files and programs.
- Select “Empty the cache” to clear the pages of the sites inserted in cache memory.
- Click on “Clear browsing data” button.
- Click on the “Close” button.
MOZILLA FIREFOX
To block cookies from all websites:
- Click the menu button and select “Preferences”.
- Select the “Privacy” panel.
- Under “History settings”, select the option “Use custom settings”.
- Remove the mark from “Accept cookies from sites”.
- Close the preferences window.
To remove previously stored cookies:
- Click the menu button, select “History” and then “Delete Recent History.”
- From the “Time interval” drop-down menu to delete: select “all”.
- Click the arrow next to “Details” to view the list of items to be deleted.
- Select “Cookies” and make sure that the other items you want to keep are not selected.
- Click “Delete now” to delete cookies, then close the window.
SAFARI 1.0 (MACOS X)
To block cookies from all websites:
- Follow the route “Safari > Preferences”.
- Select the “Privacy” label.
- Select “Always” for “Block cookies and other website data”.
To remove previously stored cookies:
- Follow the route “Safari > Preferences”.
- Select the “Privacy” label.
- Click on the “Remove all website data” button.
- Click on “Remove now”.
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