# Privacy Policy — History Graph

_Last updated: 2026-06-19_

History Graph is a browser extension that records your navigation history as you
browse and visualizes it as a branching, git-style graph. This policy explains
exactly what the extension does and does not do with your data.

## The short version

**History Graph keeps everything on your own device and sends nothing anywhere.**
There are no servers, no accounts, no analytics, and no third parties. The
extension makes no network requests of its own.

## What the extension records

To build your history graph, the extension stores, locally, a record of your
main-frame navigations. For each navigation this may include:

- The page URL
- The page title and favicon
- A timestamp
- The browser tab it occurred in, and the parent navigation it came from (so the
  graph can show how pages link to one another)

This data is only ever recorded for ordinary top-level page navigations in your
own browser.

## Where the data is stored

All recorded data is stored **locally on your device only**, using your browser's
built-in storage:

- **IndexedDB** — the persistent store for your navigation history.
- **`storage.session`** — short-lived, in-memory state the extension needs to
  reconstruct relationships between pages; it is cleared when your browser closes.

The extension does **not** transmit this data off your device. It is not sent to
the developer or to any other party, because the extension makes no outbound
network connections.

## What the extension does NOT do

- It does **not** collect or transmit any data to the developer or third parties.
- It does **not** include any analytics, telemetry, tracking, or advertising.
- It does **not** sell or share your data.
- It does **not** require an account, sign-in, or any personal information.
- It does **not** request host permissions or read the contents of the pages you
  visit (only navigation metadata such as URLs and titles).

The extension's declared permissions (`webNavigation`, `tabs`, `storage`, and the
side panel / sidebar) are used solely to capture navigation events and render the
graph locally. In the Firefox build this is reflected by the manifest's
`data_collection_permissions: { required: ["none"] }` declaration.

## Your control over your data

Because the data lives only in your browser, you are in full control of it:

- **Stop recording / remove everything:** uninstalling the extension removes its
  locally stored data, per your browser's normal handling of extension storage.
- **Clear browser storage:** clearing the extension's site/storage data through
  your browser will delete the recorded history.


## Changes to this policy

If the extension's data practices ever change, this policy will be updated and
the "Last updated" date above will change accordingly.