Badass. I have been a pro user for quite a while and was eager to try Firefox 57. The only thing holding me back from broader adoption was the lack of Speed Dial 2 (so I thought) and was delighted to find it was available. I can now seamlessly move from computer-to-computer and browser-to-browser with all my tabs and bookmarked items right where I left them.
Fantastic Add-on and thanks for making such a great product.