AO3 work filters — sort, ratings, warnings, categories, word count, language, include/exclude tag lists — reset every time you click through to a new tag. AO3 Filter Manager carries them with you, and adds named, reusable filter sets. Carry filters between tags — Set your filters once, then click any tag link on the page; the new tag's works listing opens with the same filters already applied. Middle-click and Ctrl+click (new tabs) work too, and you always land on page 1 of the new tag. Landing on an unfiltered listing — including via AO3's own "Clear Filters" link — resets the carry, so filters you deliberately dropped stay dropped. Carry can be toggled off in the panel. A panel for your filters — A small "AO3 Filters" button (bottom-right corner) opens a manager panel that:

lists every active filter in plain English ("Sort: Kudos", "Exclude Warning: Major Character Death", "Fandom: Doctor Who (2005)") with a × button to remove filters one at a time
offers a one-click "Clear all filters"
stays open across pages while you navigate from tag to tag

Named filter sets — Save the current filter combination under any name, then apply it with one click to any works listing: a tag's works page, the Works index, or works search. Overwriting and deleting sets is supported. Export / Import — Export all saved sets to a JSON file and import them into another browser or share them with a friend. Imported sets that clash with existing names are renamed automatically.

Set filters on a works listing as you normally would, using AO3's sidebar filter form.
Click any tag link — your filters come along automatically.
Click AO3 Filters (bottom right) to review filters, remove them one by one, clear them, or save the combination as a set.
On any works listing, open the panel and hit Apply to this listing on a saved set.

Handles AO3's canonical-tag redirect quirk: AO3 drops the whole query string when redirecting a non-canonical tag to its canonical form; AO3 Filter Manager detects this and restores your filters automatically.
Tag names are learned locally from AO3's own filter forms, so saved sets read "Fandom: Doctor Who (2005)" instead of raw tag IDs; rating, warning, category, sort, and language labels are scraped from those same forms instead of being hardcoded, so the panel always matches AO3's wording.
Respects the adult-content gate once you've passed it, so carried links don't bounce you back to the interstitial.
Everything is stored in your browser (localStorage). No network requests, no accounts, no external assets, no dependencies, and no privileges beyond the AO3 site itself.
Works on works listings: tag works pages, the Works index (/works), and works search.

Ultime version

Version 1.4.1