Is Wikipedia Add A Fact safe?

Clean risk

Wikipedia Add A Fact sends selected page text, page context, and a hashed user ID to Toolforge when users verify a fact.

When you select text on a page and use the verification flow, the extension sends that selection plus page title, description, and date context to the Add A Fact API. It also includes a daily SHA-512 hash of the extension's locally stored user ID in an X-User-Id header, with an optional user secret if configured.

Wikimedia Foundationv0.3.0Chrome Web Store
1Risk
Who publishes it

Wikimedia Foundation - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Wikimedia Foundation
Declared legal entity
Wikimedia Foundation
Registered address
1 Montgomery St Suite 1600, San Francisco, CA 94104-5516, US
Registered contact
Wikimedia Foundation

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 0.3.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on localhost:8000

    http://localhost:8000/find_citation

  • Read and change your data on citation-needed-api.toolforge.org

    https://citation-needed-api.toolforge.org/*

  • Read and change your data on every secure site you visit

    https://*/*

  • Run its own code inside the pages you visit

    scripting

  • Act on the current tab, but only after you click the extension

    activeTab

  • Store data in your browser

    storage

  • Show a panel beside the page

    sidePanel

  • Add items to the right-click menu

    contextMenus

Where it sends data

Destinations our analysis observed Wikipedia Add A Fact contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • citation-needed-api.toolforge.org

    Wikipedia Add A Fact sends data to citation-needed-api.toolforge.org. No other extension we have analysed sends data here.

Updated 30 September 2026kecnjhdipdihkibljeicopdcoinghmhj