Great extension, bringing actual, useful data to Amazon listings!
One additional star for the clear explanation of what data is collected.

Do NOT post BAD reviews if you are not aware of this information (from Keepa support):

"Nothing about how Keepa handles data changed in this update. Mozilla now requires every add-on to declare data categories from a fixed list, and Firefox displays them on update.

What Keepa does: on an Amazon product page it sends that product's ASIN to keepa.com to draw the price chart. It is not logged and not retained. Nothing is stored unless you choose to track a product. This unfortunately triggers the "collecting browsing history" permission.

The "personally identifying information" line refers to your Keepa session token - a login credential for your own account, not your name or email. We think that's the wrong label and have asked Mozilla to change it to "authentication information".

The extension runs only on Amazon product pages."

Do not blame Keepa for things required by Mozilla.
This kind of "issue" also happens On Google Play.
I'll keep using this addon!

EDIT: False alarm. Good informative response from the developer. Bit of a wrong move from FF.
Searching online and taking a better look at Keepa's privacy policy, it may be not perfect, but I trust it.

OLD REVIEW:
This just became a privacy nightmare. Uninstalled.

Edit: I have adjusted my review under the understanding that this is a change in how firefox discloses data privacy. I would still advise the developers to address some still relevant concerns from Platant's blog post "Data exfiltration in Keepa Price Tracker".

Original: Uninstalling until the recent changes requiring lots of personal data collection is rolled back. There is no need for this info and hasn't been needed for years. Enshitification.

Greed got these guys like it did everyone else. There would be far more users if you made it affordable for everyone. But you decide to track more user information and cut way down the free version. No thanks. Look elsewhere, there are some really good competitors. And to think I have to now warn all the people I told to install it.

Love what this does but they keep adding more and more ways to take your data for no reason other than sell it. No thanks.

It does it's job, but why does it need "personally identifying information" ?
I will just uninstall this shit, as if we needed more trackers.

Recent app updates want to track:
Browsing activity — potentially information about the websites/pages you visit.
Website content — potentially the contents of pages you view.
Personally identifying information (PII) — information that can identify you, such as names, email addresses, addresses, etc.

It didn't need it before so why now? Uninstalling.

Very helpful tool. I use the free tier and it covers the basics. Anyone worried about the recent permissions update: TLDR; nothing new as far as I can see.

Under Manifest V2 (v4.19), permissions and host access were lumped together under one simple umbrella.

Under Manifest V3 (v5.63), web browsers separate functional browser permissions (like saving your settings) from target host permissions (the actual websites the code can touch).

Because the code structure changed to the modern template, Firefox handles this as a permission change and forces a manual review, even though Keepa is still only targeting Amazon and Keepa domains to overlay its pricing graphs.

Gradually increasing pricing for premium options and now scraping more and more user data. no thank you, uninstalled.

Super comme extension

Trickery have to pay 30 bucks a MONTH to use this properly. When I clicked to see a price history I was appalled to be taken to keepa's site where they wanted to charge 29 euros a MONTH for a firefox addon. Paypal Honey is FREE. I will just keep using that one.

Stopped tracking digital products without notification, causing me to miss several good deals. I was only using it to track ebooks, so it's useless now to me. Switched to Camelcamelcamel instead.

Very good, thanks !

Absolutely PHENOMENAL service to offer for free. It's super helpful to get price alerts and more importantly price HISTORY for almost every item I can find on Amazon! Thank you!!

всё летает, багов не заметил