Launch Multiple Gmail Accounts simultaneously in your Browsers

CookiePie (Also known as ChocoTorta) is a amazing plugin for browsers like FireFox, Flock / GNU IceWeasel which lets you open multiple Gmail accounts & other services like Yahoo, eBay, Facebook, Twitter, etc simultaneously. Basically, CookiePie maintains different cookies storage in different tabs and windows which enables you to do so.

At the moment, CookiePie is compatible with Windows and Linux. (Mac version is also coming soon). It’s a very simple application, all you need to do is right click on a browser tab or window in order to give it its own unique cookies environment.

Check out this video to learn more about it

Download it freely from this CookiePie Extension link and find out more information on their official website.