ExtensionOS
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Browser extension

Never lose a page again.

FindThat quietly remembers the pages you visit, then lets you re-find them by what you remember — “the 3D printing LED lamp guide I saw yesterday” — instead of the exact title or URL.

Download FindThatHow to install

Version 0.1.0 · Free · Local-first

FindThat Pro

Search by meaning, sync everywhere

The free plan is fully local and yours forever. Pro adds AI-powered search and cross-device sync.

Pro

$0.99/month
AI semantic search — find pages by meaning, not just keywordsCloud sync across all your devicesUnlimited indexed pages (free is capped at 25)
Upgrade to Pro

Cancel anytime. Your locally saved pages always stay on your device.

Download

Install FindThat for your browser

Free and local-first. We highlight the build for the browser you're using right now.

Chrome, Edge, Brave & Opera

Chromium browsers — side panel supported.

Download 93 KB

SHA-256 ff19d2d789de6b5b…

Firefox

Uses the Firefox sidebar.

Download 93 KB

SHA-256 49b9f380119bf262…

Safari

Coming soon via the App Store.

Official builds, signed with SHA-256 checksums. Everything runs locally on the free plan.

Local-first & privateNatural-language searchReopen any page instantly
Setup

Load it in under a minute

FindThat isn't on the web stores yet, so it installs as an unpacked developer extension for now.

Chrome · Edge · Brave · Opera

  1. 1Download and unzip findthat-chrome.zip.
  2. 2Open chrome://extensions (or edge://extensions).
  3. 3Turn on Developer mode (top-right).
  4. 4Click Load unpacked and select the findthat-chrome folder.
  5. 5Pin FindThat, then click it and choose Open FindThat.

Firefox

  1. 1Download and unzip findthat-firefox.zip.
  2. 2Open about:debugging#/runtime/this-firefox.
  3. 3Click Load Temporary Add-on…
  4. 4Select manifest.json inside the findthat-firefox folder.
  5. 5Open the FindThat sidebar from the toolbar.

Safari requires a separate App Store build — coming soon.