U would have always felt a need to login to more than one e-mail account at the same time.Suppose that u own two different yahoo-mail accounts.U have signed in to one of those accounts but u have to sign in to the other one also at the same time without logging out from the first account.this is not possible in normal circumstances.

To avoid this inconvienience, FIREFOX has designed an ADDON in mozilla firefox.This ADDON is named “COOKIE SWAP”.

CookieSwap enables you to easily swap all your cookies so that you can be logged in to multiple web e-mail accounts (like Gmail and Yahoo! mail) at the same time and quickly switch between them.CookieSwap is an extension that enables you to maintain numerous sets or ‘profiles’ of cookies that you can quickly swap between while browsing.

Some uses of this firefox extension are:
* Changing your cookies/identity to web e-mail sites (like Yahoo, Gmail, Hotmail, etc) so that you can quickly look like different users. Nice if you maintain multiple accounts and are tired of logging out and then back in to switch accounts. Also nice if two people are using the same computer and want to switch between accounts quickly.

* Changing your cookies/identity to see how sites like Amazon and Google treat you differently depending on who you are. For example, if Amazon recognizes you as a returning shopper they give you a different looking page (and there were claims that they give you different prices also). Google has begun to use a feature called ‘Personalized Search’, where they modify their search results based on your user identity. There is a question about this when you create your Google account. The results of Google searches are different depending on if Google knows you or not. Use CookieSwap to quickly swap between Google recognizing you and being anonymous. Run the same search and see the differences.

* If you design web sites, you can setup numerous cookie profiles to look like different types of users and swap between those users quickly and easily to test your site in numerous modes.

To download this extension for your firefox visit: