This is done on your own computer, depending upon which browser you use. I don't accept cookies "except" ... for those sites that I choose, which I add to the list of "exceptions."

How to Enable Cookies in Firefox?
Mozilla Firefox is unarguably the king of web browsers in the world. It is one of the best web browsers due to the extensive features it offers to make web browsing easy. Mozilla has extensive features related to cookies. How to enable cookies in Mozilla Firefox 5.0? Here are the directions:

• To enable cookies in Firefox, click on the 'Tools' option and click on 'Options.'
• A window with various tabs will open. Select the 'Privacy' tab. The 'Firefox will accept Custom settings for history' option will be selected and you will see a list of check boxes below.
• Click on the check box which says 'Accept cookies from sites'. There will be an exceptions tab, where you can specify sites from which you do not want cookies to be saved.
• To disable third party cookies, uncheck the box that says 'Accept third party cookies'.
• You can also choose the duration for which you want the cookies to be stored through the 'Keep until' option.

How to Enable Cookies in Internet Explorer?
Internet explorer is the second most popular web browser today. Here are instructions on how to enable cookies in the latest version of internet explorer, which is IE8.

• Click on the tools tab of IE8 and then select 'Internet Options' from the drop down window.
• A window with various tabs will open. Select the 'Privacy' tab. Click on 'Advanced' button.
• The cookie handling window will open. The check box titled 'override automatic cookie handling' must be in a checked state. Look at the options given below.
• IE8 gives a set of three options - 'Accept, Block or Prompt' for first party cookies and third party cookies. Select the 'Accept' option for first party cookies or 'Prompt' and you may choose to block the third party cookies (recommended) or select the 'Prompt' option for them.