Beautiful interface and functional gestures. It's missing a few features from FireGestures (such as being able to hold ctrl down and opening many links at once), and does not work on new tabs (it probably never will, Firefox Quantum has restricted addons quite a bit). I feel as if the detection is a bit too precise, meaning that it doesn't give you a lot of wiggle room when drawing gestures. Sometimes I have to draw a simple one two or three times, just because it's hard to draw a perfectly straight line with your mouse. Even so, this is as good as it gets on Firefox 57+