Completely abandoned. Rated 1 out of 5 stars

Completely abandoned extension. Don't waste your time.

This review is for a previous version of the add-on (0.1.9). 

Rated 2 out of 5 stars

Has the potential to be the best Gmail extension for Firefox.
Unfortunately it's very Buggy, some essential functions like "Mark as read" doesn't work anymore for a long time and it has not been fixed. I wish the developer would give it a little bit more attention and updates.

This review is for a previous version of the add-on (0.1.9).