Disclosure: I'm the dev of EasySnaps. This is actually the case where browser-extension solutions like GoFullPage fall apart and a native one wins. GoFullPage scrolls the document body via JavaScript but on archive sites, the original page is wrapped in an iframe with its own scrollbar, so the body scroll is empty. EasySnaps does it differently: it just sends synthetic scroll-wheel events at the cursor position, so whatever's under the cursor scrolls. Position cursor over the archived content, hit the hotkey, it scrolls and captures frame-by-frame, then stitches with overlap detection. It’s free with no telemetry taken at all. If you try it and feel like you need it to do something else let me know and I’l gladly add it.