TL;DR: This extension does not collect, upload, or sell any user data. All analysis happens locally in your browser, and data is stored only in your browser's chrome.storage.local.
What We Collect
Nothing.
This extension does NOT transmit the following to any server (including the author's):
Amazon listing URLs or ASINs you visit
Product titles, prices, or review content you view
Your Amazon account information (we never access your login state)
Your IP address, device info, or browser fingerprint
Any cookies, usage analytics, or error tracking
What's Stored Locally
For the "Visit History" and "Cross-Listing Comparison" features, the extension stores data in your browser's local storage (chrome.storage.local). No data is ever transmitted.
External Services We Access
Amazon product pages — Only when you actively open an Amazon product page. Only reads public HTML. Never scans in background.
Wayback Machine (web.archive.org) — Queries publicly available historical snapshots.
The author operates no servers. This is a pure client-side extension.
Permissions
Permission
Purpose
storage
Store visit history and settings locally
host_permissions × Amazon 11 sites
Inject content script on Amazon listings
host_permissions × web.archive.org
Query Wayback snapshots
Children's Privacy
This extension is designed for cross-border e-commerce professionals and is not directed at children. We do not knowingly collect data from minors (we don't collect data from anyone).
Data Deletion
Local visit history: Click "Clear" in extension popup top-right
Uninstalling: Chrome automatically clears all extension local storage
Individual ASINs: × button on each row in visit history list
Policy Changes
Any future policy changes will be announced in extension update notes. New data collection features will require explicit user opt-in (off by default).