Can work as an extension or independent replacement. History Export/Import buttons. Live updates (collapse on back-navigation, alt-tab...). Redesigned Skipped/Seen combo button. Enhanced title. Mark-open ignores external links. | AO3 Standalone: Light/Dark site-skin button.
Thank you so much for this! I was having trouble importing/exporting because my list had gotten so long. This is a lifesaver!