A cookie is a small file, usually consist of letters and numbers downloaded on your computer when you access certain Web sites or services.

Cookies have many uses, including letting you effectively navigate through web pages, remember your preferences, and generally improve your experience on a website. They can also help ensure that ads which you have access are most relevant to you based on your interests.

Cookies are stored in the memory of your browser and each generally contains:
• The name of the server from which the cookie was sent;
• The lifetime of the cookie;
• A value - usually a unique number generated randomly.
The web server sends the cookie uses this number to recognize you when you return to the site or navigate from page to page. Only the server that sent the cookie can read and, therefore, use this cookie.

Data on visitor navigation are not exploited by name; it is aggregated statistics to know the most and least popular pages, preferred paths, levels of activity by day of week and time of day, the main client or server errors. We remind you that you can oppose the registration of "cookies" by configuring your browser, referring to the user manual of your browser.

      Internet Explorer

1 - Select "Tools" then "Internet Options."
2 - Click on the "Privacy" tab.
3 - Drag the slider to select the desired setting.
4 - For more specialized cookie settings, click "Advanced".
5 - Check the "Override automatic cookie handling" to manually manage the addition of cookies:
Under "Cookies", select "Accept" or "Prompt".
Under "Third-party Cookies", select "Accept" or "Prompt" (if you select the 'Prompt' option, your agreement is required each time a website attempts to send you a cookie).
6 - Click OK to close the "Internet Options."

      Mozilla Firefox

1 - Select "Tools" then "Options."
2 - Select the panel "Privacy".
3 - Set "Conservation Rules": "Use custom settings for history".
4 - Check the "Accept cookies" to enable cookies and uncheck it to disable them.
5 - Choose the cookie shelf life:
Keep until: "they expire": Each cookie will be removed when it reaches its expiration date determined by the site that sent the cookie.
Keep until: "I close Firefox": The cookies that are stored on your computer will be removed when closing Firefox.
Keep until: "ask me every time": Displays an alert every time a website tries to send a cookie to request your approval.
6 - Click OK to close the "Options" window.

      Google Chrome

1 - Click on the icon of a wrench that is in the browser toolbar.
2 - Select "Options" (Preferences on Mac and Linux; Settings on a Chromebook).
3 - Click the "Advanced" tab.
4 - Click on the "Content Settings" from the "Privacy" section option.
5 - In the dialog box "Content Settings" that appears, click the "Cookies" tab.
6 - Click on "Cookies and site data" to open the dialog box "Cookies and Other Media."

=> Delete Cookies
To delete all cookies, click "Remove All" at the bottom of the dialog box.
To delete a specific cookie, select the site that issued the cookie, then the cookie. Then click "Delete."
=> Block cookies by default
=> Block all cookies: select "Block sites from setting any data." Warning: most sites that require you identify yourself will not work properly unless this option is selected. The icon appears blocked cookie in the address bar whenever a cookie is blocked.
Block third-party cookies: Select the "Ignore exceptions and block third-party cookies." When this option is selected, no third party cookie is not accepted, including the sites you've added to the exceptions and you allowed cookies.
=> Allow cookies by default
Verify that the "Allow local data" is checked in order to allow both first-party cookies and third. If you want to accept the cookies, check the "Block all third-party cookies without exception."

      Opera

1 - Click the "File" menu (File menu) on the toolbar Opera (Opera tool bar).
2 - Go to "Preferences" (Preferences) to the bottom of the "File" menu (File menu).
3 - Click on "Privacy" and select from the available options.

      Safari

1 - Choose "Preferences" (Preferences) from the Safari menu.
2 - Click on the "Security" (Security).
3 - The cookie settings are displayed.
4 - Choose your preferred settings.