Open Email in Firefox Different Tab with Different Accounts

Thanks to mozdev!

I found this FF plug in very useful as I have two important Gmail account needed to check frequently at the same time.

E.g:  abc@gmail.com for my personal email and mycompany@gmail.com for my company email
in a same FF browser but in different tab.

 CookieSwap  ( image from cookieswap.mozdev.org )
http://cookieswap.mozdev.org/