Review for MRC Compose by jwmurray
Rated 5 out of 5 stars
I have been looking forever for this add-on. It allows me to enter 'cc' and 'bcc' fields from the keyboard (without using a mouse). Thank you!
OSX 10.11, TB 38.5.0, MRC: 1.8.2
To create your own collections, you must have a Mozilla Add-ons account.