Rated 2 out of 5 stars

The good: It links to the browser I specified when I right click the link

The bad: It steals the Thunderbird context menu - which sort of shows up if you double right click the link, but it also opens two copies of the link in the browser (from the reply to another review of this addon, it appears that the author is not even aware of the existance of the Thunderbird context menu)

Conclusion: Too annoying to use until this interface is redone

This review is for a previous version of the add-on (0.7). 

No, 0.8 fixes the context menu problem. And yes I do use the context menu, I just didn't notice that the filter had been removed when I've been releasing these.