I got New Firefox Add- Ons Gmail Manager….. It’s really useful add-ons. in this add-ons you can open multiple account at same time suppose i have 5 account in gmail, i can open all 5 account at a same time.. it’s really useful during submission in SMO. i hope you will like this add-ons and use this freeware service offered by mozilla firefox. here is the direct download link: Gmail Manager Or https://addons.mozilla.org/en-US/firefox/addon/1320

Thank U ALL