Rated 4 out of 5 stars

Great extension for those used to a customised opera, which offers similar functionality by default. Another interesting addition could be a somewhat gesture-like functionality, something like a tab context menu on the right click menu (since the right click menu behaves a bit different in opera and FF, I think it would provide a nice emulation of the functionality with less hassle than one would have to do it just as it is in opera)

This review is for a previous version of the add-on (1.1.2008042801).