Rated 2 out of 5 stars

Would be a good extension if it didn't make style changes to the compose window. With this extension enabled it modifies the compose window to have a horrendously ugly yellow/orange border color and white text on white background for the to,from,subject fields, which makes it completely unusable. Please remove style changes and will use again and update review.

This review is for a previous version of the add-on (1.9.7). 

Colors can be easily disabled in Identity Chooser's settings.