win 10 has no sync options for transferring win files from win 8.1 which i am recycling because of old age. all mozilla wants me to do is download stuff to create a mobile app on my mobile phone, which is NOT going to happen. other than transferring my files to a portable hard drive,then to my win 10, is there any other options available? Laptop win 8.1 contains all my gardening /greenhouse info that goes back to 2014 to now.