I've ALL Mac. Desktop, laptop, i-pad, i-phone - oh, and I've got a Lenova for an exercise program that's in the mix. I can't seem to get any syncing done. I see notices that it's happened, but the tabs on none of the devices line up. I also tried syncing with/to/from my iphone. I got you QR Code and had to use the Iphone camera to scan it in. I got a message that I have to do it from within Firefox - but all I can get there is something KROLL. And that's an internet URL/page. I can't find a way to scan the QR code with that app hogging my screen. I've attempted to scroll/dump that tab but when I open up Firefox again...it's still there.