ContextLayer ("the extension", "we") is a browser extension that lets you highlight text on webpages, save pages to read later, and search everything you have saved. This policy explains exactly what data the extension handles and where it goes.
The short version: Your highlights, saved pages, and snapshots stay on your own device. The only thing ever sent to us is what you voluntarily type into the Feedback form. We do not track your browsing, sell data, or show ads.
1. Data stored on your device
The following are stored locally in your browser (using IndexedDB) and are never transmitted to us or any third party:
Highlights — the text you select and choose to save, along with its source page URL, page title, and the date saved.
Reading list — pages you save to read later, including their URL and title.
Page snapshots — when you save a page, the extension extracts the article text and stores it locally so you can search it later.
Settings — such as your chosen interface language.
This data remains under your control. If you uninstall the extension, your browser deletes this data.
2. Data sent off your device
Feedback form (the only outbound data)
If you choose to submit feedback through the extension's Feedback page, the following information is sent to our database provider (Supabase) so we can read and act on your feedback:
Your star rating
The feedback type you selected (Bug Report, Feature Request, or General Feedback)
The message you wrote
Your email address — only if you choose to provide it, so we can reply
The extension version number
This data is sent only when you actively click "Send Feedback". If you never use the Feedback form, nothing leaves your device.
3. Permissions and why we need them
Access to webpages you visit — required so you can select and highlight text on any page. The extension reads page content only to perform highlighting and to create the local snapshot you requested.
Storage — to save your highlights, reading list, and settings locally.
Context menus — to add the right-click "ContextLayer" options.
4. What we do NOT do
We do not track, log, or transmit your browsing history.
We do not sell, rent, or share your data with advertisers.
We do not run analytics or advertising trackers inside the extension.
We do not require an account to use the extension.
5. Data retention and deletion
Data on your device is deleted when you uninstall the extension or clear it manually. Feedback you submit is retained in our database for as long as needed to address it. To request deletion of feedback you have submitted, contact us at the email below.
6. Children
ContextLayer is not directed at children under 13 and we do not knowingly collect data from them.
7. Changes to this policy
If we change how data is handled, we will update this page and the "Last updated" date above.