Lume CSS Selector

1. What Is Lume CSS Selector?

Lume CSS Selector is a Chrome DevTools extension that adds a sidebar panel to the Elements tab. It helps developers and QA engineers build CSS selectors by clicking on element attributes in the inspected page.

2. Data Collection

This extension does not collect any personal data. Specifically, we do not collect:

• Names, email addresses, or contact information
• Browsing history or visited URLs
• Page content from the websites you inspect
• CSS selectors you build or copy
• Crash reports or usage analytics
• Device identifiers or IP addresses

3. How the Extension Works

Lume CSS Selector operates entirely within your local browser environment:

• It reads the DOM of the page you are actively inspecting in Chrome DevTools using the standard chrome.devtools.inspectedWindow.eval() API.
• All selector building, element highlighting, and match counting happen locally in your browser — no data leaves your machine.
• It uses the DevTools $0 reference (the currently selected element) to display element attributes. This information is never stored or transmitted.
• The CSS selector you build is only written to your clipboard when you explicitly click the Copy button.

4. Data Storage

Lume CSS Selector does not use:

• Cookies
• chrome.storage (local or sync)
• localStorage or sessionStorage
• IndexedDB or any other persistent storage

All state (selected chips, current selector, match count) exists only in memory while DevTools is open and is discarded when you close DevTools or navigate to a new page.

5. Network Requests

Lume CSS Selector makes zero network requests. It does not contact any external server, API, or third-party service. There is no telemetry, no remote configuration, and no update check performed by the extension itself.

6. Permissions

The extension requires no special browser permissions beyond what is necessary to operate as a Chrome DevTools extension. It does not request access to tabs, history, cookies, identity, or any other sensitive permission. It does not use host permissions.

7. Third-Party Services

Lume CSS Selector does not integrate with any third-party services, analytics platforms, advertising networks, or crash reporting tools.

8. Children's Privacy

This extension is a developer tool intended for professional use. It does not knowingly collect information from anyone, including children under the age of 13.

9. Changes to This Policy

If we ever update this privacy policy, the updated version will be published at this URL with a revised "Last updated" date. Since the extension collects no data, we do not anticipate substantive changes.

10. Contact

If you have any questions about this privacy policy or the extension, please open an issue on our GitHub repository:

https://github.com/LumeStack/lume-css-selector/issues