Privacy Policy

TabLens browser extension · Last updated 19 June 2026

The short version: TabLens runs 100% in your browser. It does not collect, store remotely, sell, or transmit any of your data. There are no accounts, no analytics, and no servers that receive your browsing data.

What TabLens does

TabLens is a bundle of five tab quality-of-life tools, each an optional toggle: a site usage timer, a daily streak & stats dashboard, scroll-position memory, sticky notes, and a page-change monitor. All processing happens locally on your device.

What it accesses — and why

• The active tab's URL — so the usage timer can attribute time to the correct site (domain only). It does not read page content for the timer.
• Idle state — to pause the timer when you step away, so only active time is counted.
• Sites you choose (<all_urls> host access, optional) — requested only when you enable an on-page tool (scroll memory, sticky notes, or page diff monitor), so it can run on the pages you visit. If you never enable those, this access is never requested.

What it stores

Only on your device, via the browser's storage APIs:

• Your usage history (active seconds per site, per day) and the streaks computed from it.
• Your sticky notes and saved scroll positions, per page.
• The list of pages you've chosen to watch for changes, and their last-seen content fingerprint.
• Your settings — which features are on, and your theme choice.

None of this is ever sent off your device.

What it does NOT do

• No data collection, no transmission to any server we run, no selling or sharing of data.
• No accounts, sign-in, tracking, advertising, or third-party analytics.
• No reading of passwords, form inputs, or page content beyond what a feature you enabled needs (sticky-note text is what you type; scroll memory stores only a scroll offset).

Page diff monitor

If you enable the page diff monitor and add pages to watch, TabLens periodically fetches those specific URLs from your browser to detect whether their content changed. This happens locally; the fetched content is reduced to a fingerprint and compared on your device. Nothing is sent to us.

Permissions summary

• tabs — read the active tab's URL for timer attribution and open the stats page.
• storage — save your history, streaks, notes, scroll positions, watched pages, and settings on-device.
• idle — pause the timer when you're away.
• alarms — periodically persist the active session and run page-change checks.
• scripting — inject the on-page tools (scroll memory, sticky notes) only when you enable them.
• <all_urls> (optional host access) — run the on-page tools on the sites you choose; requested only when enabled.

Children

TabLens is a general-purpose productivity tool and is not directed at children. It collects no personal data from anyone.

Changes

If this policy changes, the updated version will be posted here with a new date.

Contact

Questions? Open an issue at github.com/sorapallivenkatesh/toolwizhub-tablens.