Rated 1 out of 5 stars

While Thunderbird's design evolves, Thunderbrowse still has the same design it had 2 years ago. It does not fit anymore in Thunderbird. I prefer to give up its functionality than to see something very ugly every time I open my mail.

This review is for a previous version of the add-on (3.81). 

I'm not a graphic designer, I'm a programmer. I'll admit design is not my strongest point. If you don't like how it looks, there are several themes that compliment ThunderBrowse quite nicely (I'd recommend Charamel)