Yes, the add-on follows its own privacy policy. You should provide one. Example text:

Moodpile collects the following data:
- Authentication tokens to connect your browser extension to your Moodpile account
- Product data (name, price, images, identifiers) scraped from web pages you visit, only when you actively use the extension
- Your extension preferences (theme, language, capture mode)

All data is transmitted securely to Moodpile servers and stored in accordance with your account settings. No browsing data is collected passively.
Product scraping only occurs when triggered by you (manually or via auto-capture mode). No data is shared with third parties.

For full details, see our privacy policy at: https://moodpile.com/privacy