Similar to bug 36291, the holdings table is also glitching during scrolling. I'm seeing the following message in the console log: "This site appears to use a scroll-linked positioning effect. This may not work well with asynchronous panning; see https://firefox-source-docs.mozilla.org/performance/scroll-linked_effects.html for further details and to join the discussion on related tools and features!"
That warning will show up on any page that uses HCSticky as far as I know, and doesn't necessarily indicate an actual problem with the page.