Scrapbook ran fine on older XUL Firefox, and continues to run under Basilisk. When I loaded my old data, which is some 4,000 web pages in several branches of science, I realized when I had lost when Firefox was XUL-nerfed. I tried to post something here on Slashdot about Scrapbook, but like most of my submissions, it was ignored. Scrapbook was so useful that Mozilla came out with its attempted equivalent competitor Pocket as a service, but the old Scrapbook users perhaps did not want the privilege of paying for a lesser program as Scrapbook. There have been attempts to make Scrapbook in current Firefox, but it's a uphill battle. I am wondering if Mozilla really killed XUL for the aspirations of Web-aps, to kill the free extension market.