Firefox has a feature which allows users to see the cookies created for a web page. To find the cookies created for a web page using Firefox 5, open the web page in Firefox 5 then navigate to Tool menu.
From the list of available menu click Page Info to launch a new window with details about the page.
Click the Details button available at the bottom of the page.
Navigate to Privacy and History section and click on the View Cookies button. This would display the following Cookies window containing the list of cookies created for that webpage or a blog.