Last updated: 9 September 2026
Ficmarks collects nothing, transmits nothing, and has no server. Everything the extension records stays inside your own browser profile.
When you mark a work, Ficmarks writes a row into your browser's local IndexedDB database, owned by the extension. A row holds:
Your settings (four on/off toggles) are stored in the browser's extension settings area. Nothing else is stored.
Nowhere. The extension contains no network code — no
fetch, no XMLHttpRequest, no WebSocket, no analytics
library, no telemetry, no crash reporting, no advertising or tracking
identifiers. There is no account, no sign-in, and no backend service to
send anything to. The source is auditable on this point.
The extension runs only on https://archiveofourown.org/*, and only
to read the page you already have open — the work id, title, author and
chapter count that AO3 has already rendered — and to draw its own marks and
buttons onto it. It never sends requests to AO3 on your behalf, never signs in
for you, never touches your AO3 account, and does not read or store your AO3
password, email, bookmarks, history, or any other account data.
Ficmarks is not directed at children and collects no personal information from anyone, of any age.
If a future version ever adds an optional feature that does transmit data — for example, syncing your marks between your own devices — it will be opt-in, off by default, announced in the release notes, and this page will be updated before that version ships. Silent changes will not happen.
There is no account and no server, so there is nothing stored anywhere else to request the deletion of: removing the extension deletes its local database along with it. Questions can be left as a review on the extension's store page.