Review for Gmail Manager by Robert Nordlund
Rated 5 out of 5 stars
One word: amazing. It manages my gmail accounts and my google hosted account simultaneously. I never have to login, I never have to wonder if I have mail. Next to Adblock Plus, this is the best add-on I've ever used. Thanks author!
This review is for a previous version of the add-on (0.5.4).To create your own collections, you must have a Mozilla Add-ons account.