What are cookies?
A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don't have to keep re-entering them whenever you come back to the site or browse from one page to another.
How do we use cookies?
A number of our pages use cookies that are not strictly necessary for the website to work but will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended. These cookies are used to remember:
your display preferences, such as browsing language, contrast colour, font size, device used, search results preferences and notification preferences.
your latest visit on the website (for statistical purposes) and the latest pages visited (to help our helpdesk in case you send a request)
if you have agreed (or not) to our use of cookies on this site
Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.
Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.
Private data
The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.
In Chrome
On your computer, open Chrome.
At the top right, click More More.
Click More tools and then Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
Mozilla
Click the menu button choose Options.
Select the Privacy & Security panel and go to the Cookies and Site Data section.
Click the Manage Data… button. The Manage Cookies and Site Data dialog will appear.
In the Search websites field, type the name of the site whose cookies you want to remove. Items that match your search will be displayed.
To remove all cookies and storage data for the website, click Remove All Shown.
To remove selected items, select an entry and click Remove Selected.
Click Save Changes.
In the Removing Cookies and Site Data confirmation dialog that opens, click OK.
Close the about:preferences page.
SAFARI
In the Safari app on your Mac, choose Safari > Preferences, click Privacy, then do any of the following:
Prevent trackers from using cookies and website data to track you: Select “Prevent cross-site tracking.”
Cookies and website data are deleted unless you visit and interact with the trackers’ websites.
Always block cookies: Select “Block all cookies.”
Websites, third parties, and advertisers can’t store cookies and other data on your Mac. This may prevent some websites from working properly.
Remove stored cookies and data: Click Manage Website Data, select one or more websites, then click Remove or Remove All.
Removing the data may reduce tracking, but may also log you out of websites or change website behavior.
MS EDGE
Open Microsoft Edge and go to Settings and more > Settings > Privacy & security.
Under Clear browsing data, select Choose what to clear.
Select the Cookies and saved website data check box and then select Clear.