Chrome Extension Data and Privacy
Data read, stored and sent by the Downcity Chrome extension, and why permissions are required.
This notice applies to Downcity Chrome Extension 0.3.0. Updated October 14, 2026.
Data read and sent
The extension reads the active tab's title and URL to display page references. A local selection script detects selected text; clicking Reference passes that selection to the side panel.
When you submit a request, the extension sends your input and the page content, title, URL or selections included in that request to the Agent and Workspace at your configured City URL. Removing a page reference prevents that page's body from being read and sent for that request. Page references may include private content visible to you; remove unwanted references before submitting.
Your City executes Agent requests according to its configuration. Content may be provided to the model services or tools you configure. Server retention, model providers and tool behavior depend on that City.
Local storage
Chrome storage.local stores the City URL, Agent ID, Workspace ID, Agent Token, default request, server session IDs, recent page-sharing records and temporary selection references. Tokens are not written to storage.sync.
Page-sharing records contain the page URL, request text and timestamp, not the captured page body. Uninstalling removes browser settings. Manage server sessions separately in Downcity.
Permissions
| Permission | Purpose |
|---|---|
tabs | Read active tab title and URL and respond to tab changes |
activeTab, scripting | Read page content when you submit a page reference |
sidePanel | Display persistent chat |
storage | Save local settings, session identities and temporary references |
| HTTP/HTTPS host permissions | Connect to your chosen local or remote City and provide selection references on regular webpages |
The extension itself includes no advertising, analytics or separate telemetry uploads and does not sell user data. Website package downloads are handled by Downcity's website and Cloudflare as website requests.
For privacy questions, contact the maintainers through Downcity GitHub Issues. Do not include tokens or private page content in public reports.