Great, but lacks some flexibility Rated 4 out of 5 stars

After development of gmail manager seems to have stopped, this is the only extension that seems to give me a similar usability.
It does things a bit differently, but I have quickly come to terms with this, though I still miss the option to click the icon once to login, and a second time (when I'm logged in) to open up the gmail inbox in a tab. I have to look in sub menus in order to open up the inbox.
The settings doesn't give me a choice to change the behaviour to the description I gave, and this is what makes Gmail Checker get 4/5 stars.
All in all an otherwise great extension with both its simplicity being one of its strengths but at the same time causing it to fall short on flexibility.

This review is for a previous version of the add-on (2.6.1.1-signed).