Rated 2 out of 5 stars

Has anyone done any version comparisons? Tried installing Gmail Manager on one of the previous versions of Firefox. That way you will see if it is a Firefox change which is the issue or a change in the GMAIL network which is the problem
I too was using it and am sorry to see it go but have moved to Webmail Notifier now. Not as good as Gmail Manager but will act as a stop gap til this problem is resolved
I must admit I would rather regress my Firefox installation and have it working than go without!

This review is for a previous version of the add-on (0.6).