@mozilla @firefox @thunderbird @Waterfox Out of curiosity, and as a feature request, when do you plan upstream Waterfox into Firefox and Betterbird into Thunderbird. The additional customizibility options of Waterfox would be a great addition to Firefox and the bugfixes and improvements made to Betterbird would work great in Thunderbird. When forks of your products make great strides it is a good idea to consider upstreaming these changes for the betterment of all.