Review for Gmail Manager by Grey
Rated 3 out of 5 stars
I don't know if this works, & I guess I won't until the option to move the icon to where I want it to be is added. I don't use the add-on bar, & so the fact that I can't move the icon off of it basically means that it's useless to me. It's always so disappointing when developers neglect to give users that option.
To create your own collections, you must have a Mozilla Add-ons account.