Rated 5 out of 5 stars

By far that's the best add-on for manage Gmail directly from FF addon bar.

I'm not sure if you see it, but now when you come out from Gmail, your Google account still remain "active" and you only need to enter just passwords to re-login.
If you wish to check another Gmail you must go to "Manage accounts on this device " and delete the current account that you've been logged in.
The problem comes because the login process through "Gmail Manager" made with the "check box" on (when you try to login normal, not through Gmail Manager there's a check box that say: "Stay signed in" - if this box is unchecked when you leave Gmail account you're Google Account is completely logged out without the need to go... whatever I guess you see how it's the new way to log out from Gmail).

Anyway,
Cheers!

Rated 5 out of 5 stars

Damn!!!

It's not working with all changes from bellow reviews.

I have FF7, but i modified extensions to be compatible, but GmailManager it's not working in gmail.com.

Anyway it's very strange, 'cause works perfect on gmail domains (google apps).

Rated 5 out of 5 stars

And yes with 0.6.4.1 works fine. good job

This review is for a previous version of the add-on (0.6.4). 

Rated 5 out of 5 stars

I have the same problem as @Radu.

This review is for a previous version of the add-on (0.6.4).