Privacy

SYP Companion · last updated 12 September 2026

The extension collects nothing about you. It has no analytics, no telemetry, no accounts and no advertising. Nothing you read, search for or click is recorded or sent to us — we have no server that could receive it.

What it stores, and where

Only your own settings, kept in your browser's local extension storage on your device:

Your reading tweaks (wide column, high contrast, larger line-height), per site.
Whether the bar is shown or hidden.
Anything you type into the options page — an optional data URL, and an optional search API key.

This never leaves your device, is not synced to us, and is deleted when you remove the extension.

Every network request it can make

Stated in full, because "we don't collect data" should be checkable:

Files inside the extension itself. The bundled page maps and stylesheets. No network involved.
A book's search index from syp-search.pages.dev. This is not the book. The index is a word list — which words appear on which page numbers — plus the chapter titles. It contains no sentences, no page text and no snippets, and it cannot be used to read the book. The extension downloads that one book's index, named by the book's public id, and then matches your query against it on your device. Your search words are never sent anywhere. That is also why a hosted result shows only a page number and its chapter — there is no text on the server to quote from.
Your own computer, if you run the companion server. If a local server is reachable on localhost:8010, searches go to it. That is your machine talking to itself; nothing leaves it.
A data URL you type in yourself. The options page has a blank "data base URL" field. If you fill it in with a remote address, the extension will send book ids and search terms to that address, because you asked it to. Left blank — the default — this never happens.

The extension loads no remote code and runs only on satyamyogaprasad.net and localhost:8010.

Permissions, and why

storage — to remember the settings above.
activeTab — to add the bar to the page you are reading.
Access to satyamyogaprasad.net — the site the bar works on.

Children, and sensitive data

The extension asks for nothing, so it collects nothing from anyone of any age. It never touches passwords, payment details, location, health information or your browsing history. Its Firefox manifest declares data_collection_permissions: none, which Firefox shows you before you install.

Changes, and how to ask

If this ever changes, this page changes with it and the date above moves. Questions or doubts are welcome — and are public, which is the point: open an issue.