Sorry about the lack of clarity! Firefox doesn't really provide a great way to surface "why" around a change in permissions (at least not one that doesn't require you to go digging through buried extension changelogs). At any rate.

You're right. That quote is mine, from the 0.1.0 notes. It was true then, but it isn't now, and shipping the change without telling you is my mistake.

0.7.0 and 0.8.0 added two features, both on by default, both switchable off in options:

1. "Seller country" sends seller IDs to show where a seller is based.
2. "Help pick US alternatives" sends the ASIN, title, brand, and seller ID of product pages you open.

To your question: no, it cannot see your username, password, or email. It reads a few specific product elements and sends only those fields. Never form inputs, cookies, searches, or orders. Server-side it's one row per product with a view counter. No IP, session, or account stored beside it.

The labels are Firefox's fixed vocabulary. There's no bucket for "just the product page you're on," so I declared the honest maximum rather than under-declare. Mozilla's definition describes the category ceiling, not what Knockoff does.

Working on updating our Firefox listing now to clarify this.

Thanks for the feedback!