Review for Gmail Manager by seaders
Rated 4 out of 5 stars
Disappointed with the newest one because it doesn't switch to an account with mails in it. When I right-click, to see all my accounts, it shows that there's been mail in one of them, but it never switches to it, like it used to in the older version.
I'm on FF3.6 and GM0.6
To create your own collections, you must have a Mozilla Add-ons account.