Privacy Policy — The Missing Link

Last updated: 2026-06-05

The Missing Link is a Firefox extension that identifies the U.S. court case
discussed on a web page and links to it on CourtListener. It has no backend,
no account system, and collects no analytics or telemetry.

What data is processed, and where it goes

• Page text and text selections. When you click the toolbar button (or use
  the right-click "Find on CourtListener" menu), the visible text of the current
  page (capped at 20,000 characters) and your current text selection are sent to
  the Anthropic Claude API (api.anthropic.com) for the sole purpose of
  identifying the case discussed. This text is not sent anywhere else and is not
  stored by the extension.
• Case identifiers. The case name, docket number, court, and citation that
  Claude returns are sent to CourtListener (www.courtlistener.com) to find the
  matching record. No page text is sent to CourtListener.
• Your Anthropic API key. The key you enter is stored locally in your browser
  (browser.storage.local) and is transmitted only to api.anthropic.com to
  authenticate your requests. It is never sent to CourtListener, never sent to any
  other party, and never logged.

What we do not do

• No analytics, tracking, advertising, or telemetry.
• No data is sent to the developer or any server we control (there is no such
  server).
• No data is shared or sold.

Third parties

Your use of the Anthropic API and CourtListener is subject to their respective
privacy policies:
- Anthropic: https://www.anthropic.com/legal/privacy
- CourtListener (Free Law Project): https://www.courtlistener.com/terms/

Contact

Questions: open an issue at https://github.com/rlfordon/the-missing-link