Gmail Manager - Firefox Extension

I want to write a little about this good Firefox extension, maybe lots of you already know it, but for those who does not, here it goes.

As its name says, this extension lets Firefox access your Gmail account, install it from:

Gmail Manager Firefox extension once installed you will have it located at the bottom of your screen, you can manage lots of accounts, which is great, you can see how many emails you have unread, which labels they have, all of that at a glance.