Privacy Policy

1. Information the extension handles

On supported amazon.com list pages, the extension processes information needed to identify and save the list:

• List names, list identifiers, and whether the list is a Wishlist or Saved for Later.
• Product identifiers (ASINs), names, links, image addresses, variants, and displayed prices, when available.
• Save dates, previously saved product details, and whether items were present or missing in saved copies.
• An Amazon account identifier and the name shown in Amazon’s account greeting, when available.
• A local account name, which you can change, along with save progress and reminder preferences and timing.

The Amazon account identifier is converted locally into a SHA-256 fingerprint before it is stored. The original identifier is not saved. The fingerprint keeps histories for different Amazon accounts separate; it is a persistent identifier, not a claim that the data is anonymous.

2. When and why information is used

When you open the extension, it reads the information needed to recognize the current Amazon list and account and show the relevant saved history. Saving a complete list starts only when you choose Save in the extension or in its on-page reminder.

If you enable reminders, the extension checks supported list pages for information needed to decide whether to offer a reminder. Enabling reminders does not automatically save complete lists. You can turn reminders off in Settings.

Information is used to save and display list history, identify new, missing, and returning items, separate accounts, provide reminders, and export or import backups. It is not used for advertising, credit decisions, or unrelated profiling.

3. Local storage and developer access

Saved history and settings are stored in your browser’s local extension storage. The extension does not upload your lists, local account names, or account fingerprints to servers operated by the developer. It has no cloud sync or separate extension account.

The developer cannot access your local history through the extension. The extension does not include analytics, advertising trackers, or automatic error-report uploads. It does not collect passwords, sign-in tokens, payment details, or a general log of your browsing, clicks, or keystrokes.

4. Amazon images and links

Product images are saved as addresses, not as offline image files. Displaying an image can contact Amazon’s image servers at m.media-amazon.com or images-na.ssl-images-amazon.com over HTTPS. Amazon may receive the requested image address and normal connection information, such as your IP address and browser information. Image requests use a no-referrer policy.

If you open a product or list link, your browser visits Amazon. Amazon handles those visits and your use of its services under its own privacy policy. Loading an image or opening a link does not upload your stored list history to the developer.

5. Backup files

You can download your saved history as a JSON backup file and choose a file to import. Importing is processed locally. Backups can include product details, list identifiers, dates, local account names, and account fingerprints.

Backup files are not encrypted or password protected by the extension. You control where you store them and who you share them with. Importing a backup does not send it to the developer.

6. Retention, deletion, and your controls

Saved product records remain in local extension storage until you clear that storage or remove the extension. Older save summaries and product revisions are subject to the extension’s history limits; a product becoming missing does not delete its saved details.

You can view your saved history, change the local account name, export a backup, disable reminders, or revoke Amazon site access in Chrome’s extension settings. To remove all locally stored extension data, remove the extension from Chrome or clear its local storage using the browser’s extension developer tools.

Removing the extension does not delete backup files you downloaded or copies kept outside the extension, including browser-profile or device backups. Delete those separately if you no longer need them.

7. Storage and security

Local history is kept in Chrome’s extension storage. The extension does not add password-based encryption to that history. Access to your browser profile or exported files may allow access to the saved information. Protect your device, browser profile, and backup files.

The extension restricts supported product image addresses to the Amazon image hosts listed above and uses HTTPS for its Amazon links and image requests.

8. Support messages

If you email support, the developer and the email service providers involved process your email address, message, and any information you choose to include to respond to your request. Do not send passwords, sign-in codes, or a full backup unless it is necessary for the issue and you intend to share its contents.

Support correspondence is kept only as long as needed to respond, resolve the issue, or meet applicable legal obligations. The extension does not automatically attach or send your history.

9. This policy website

This policy page is hosted on GitHub Pages. GitHub processes standard connection information, including visitors’ IP addresses, to deliver and secure the website, as described in the GitHub Privacy Statement. Visiting this page does not send your extension history to GitHub. This page does not include analytics, advertising, external fonts, or tracking scripts.

10. Limited Use

Amazon Wishlist History’s use of information received from Chrome APIs complies with the Chrome Web Store User Data Policy, including its Limited Use requirements. Data is used only to provide the extension’s disclosed features. It is not sold, used for personalized advertising, or used to determine creditworthiness or for lending purposes.

11. Changes and contact

Updates to this policy will be posted on this page with a revised effective date. For privacy questions, contact support@signalhighlighter.com and mention Amazon Wishlist History.