Rated 5 out of 5 stars

I've been using it for a couple years now, and it always works as expected.I would like to see a feature added to it where it would automatically show emails in html from a particular email address, maybe some a kind of white-listing capability for the few email addresses I would manually add to the white-list.

This review is for a previous version of the add-on (3.6.4). 

Rated 1 out of 5 stars

I always keep my email default to plain text.
This addon lets me easily switch how I view the emails.
But version 3.0.3 of this addon doesn't follow through, and let me print how I see the email... So for me, this is not very useful. Until that functionality is added, I give it 1 star for starting off in the right direction.

This review is for a previous version of the add-on (3.0.3).