great productivity booster Rated 5 out of 5 stars
This is super useful for 2 reasons:
you can create template replies for repeating answers, so it is great for support or donation mail.
the built in HTML source view. This is simply a must in order to create great looking emails without resorting to an external editor. Supports everything gecko8 supports, so it is CSS3, including border radius, gradients, transitions, anything that would make a web site look nice, now also in my emails.
thanks for a great extension.