Privacy Policy

What Tabthrough is

Tabthrough is a browser extension for Chrome and Firefox that provides an interactive presentation agenda — in Chrome's Side Panel or Firefox's sidebar. It helps you navigate between browser tabs during live demos using keyboard shortcuts and auto-detection of active URLs.

The extension runs entirely within your browser. There is no backend server, no cloud sync, and no external service involved in its operation. This policy applies identically to both the Chrome and Firefox builds.

Data we access

To function, Tabthrough needs access to the following browser data:

• Active tab URL — read to match the current tab against your agenda steps. This happens locally, in the extension's background process (a service worker in Chrome, a background script in Firefox). The URL is never stored beyond the current session and never transmitted anywhere.
• Tab metadata — tab IDs and window IDs are used to switch focus between tabs when you advance a step. No page content is read.
• Page content (optional) — if you use step types that highlight elements on a page, Tabthrough may inject a content script. This script only acts on the specific selector you configured and reads nothing else from the page.

Data we store

Tabthrough stores two types of data, both entirely on your device using the browser's built-in extension storage APIs:

• Presentation deck — your agenda steps, labels, URLs, and notes. Stored in storage.local. Persists across browser restarts. Never leaves your device.
• Session state — current step index, timer start time, and managed tab IDs. Stored in storage.session. Automatically cleared when you close the browser.

No data is stored in cookies, localStorage, or any external database.

Data we do not collect

• No personal information — no name, email, IP address, or device identifiers
• No usage analytics — no events, sessions, or page views are tracked
• No crash reporting sent to external services
• No browsing history — URLs are matched in-memory and discarded
• No page content — the extension does not read or transmit the contents of any webpage you visit

Third-party services

Tabthrough uses no third-party SDKs, analytics platforms, or external APIs. The extension makes no outbound network requests of its own.

When you navigate to an external URL as part of a presentation step, that navigation is handled by your browser's normal browsing mechanism — the same as typing the URL yourself. Tabthrough is not involved in that network traffic.

Installation & distribution

The Firefox version is distributed as a Mozilla-signed extension. Installing it from Mozilla Add-ons (AMO), or downloading the signed .xpi from this site, is subject to Mozilla's Privacy Policy. We have no control over or visibility into data Mozilla may collect during installation.

A Chrome version is coming soon. When it ships, installing through the Chrome Web Store will be subject to Google's Privacy Policy — the same caveat applies: we have no visibility into data Google may collect.

However you install it, the extension itself collects nothing and behaves identically.

Changes to this policy

If this policy changes materially — for example, if we add any form of analytics or data collection — we will update the date at the top of this page and note the change in the extension's changelog.

Questions? Reach out at hadaszpatryk@gmail.com.