Types of cookies and what we each one for:
Mozilla Firefox: Click ‘Tools’ at the top left of your Firefox window. Then click ‘Options’ and a smaller window should pop up. Click the ‘Privacy’ tab and choose ‘use custom settings for history’ from the drop-down box. Then you can uncheck the ‘Accept cookies from sites’ box to remove all cookies, or ‘Accept third-party cookies’ to just remove third-party cookies. You can also choose to delete cookies every time you close Firefox, or make it so you approve every cookie as they are about to be used by a site by keeping the ‘accept cookies’ box checked and choosing ‘I close Firefox’ or ‘ask me every time’ in the ‘Keep until:’ drop down box.
Safari: In Safari 5.0 or earlier, click ‘Preferences’, ‘Security’ and then ‘Accept cookies’. There you will get the option to block all cookies, accept all cookies, or accept cookies just from sites you go to regularly. In Safari 5.1 or later, click ‘Preferences’ and ‘Privacy’, where you can choose to allow or block all cookies, or to block cookies from third parties and advertisers.
Internet Explorer: Click ‘Tools’ at the top left of your Explorer window. Then Click ‘Internet Options’ and a smaller window should pop up. Click the ‘Privacy’ tab at the top, and the settings slider allows you to choose the level of privacy you want. Clicking at the various intervals tells you what that level of privacy does for you. For example, the highest level of protection will block all cookies.
Google Chrome: Click the spanner icon on the main toolbar, then choose ‘options’ and then ‘under the hood’. Click on the ‘Privacy’ option, and then ‘content settings’. Clicking on ‘cookies’ will give you options to; delete all cookies, block all cookies, allow all cookies, or set preferences for different websites.