my only real interest was being able to swipe from and to open tabs at my whim and this add-on works like a charm on that front. this fills in the gap that the now defunct 'mobile swipe' add-on left in my soul.

my only concern is how certain system tabs such as the add-ons menu or the add-ons explorer (this screen for instance) don't allow the swipe feature. guess it's just hardcoded?

DISCLAIMER: for those unable to get this add-on to work, close all tabs and restart the browser. I was on my way to spruce up a negative review until I did that by accident and found the add-on working properly.