The author's response to one of the reviews:

https://chromewebstore.google.com/review-reply/b4a787df-64e5...

> Give Freely is not spyware/adware or any kind of 'scam'. It's an optional donation appeal that asks you (if you happen to visit a retailer which happens to be a Give Freely partner) to click a button to donate unclaimed affiliate fees, with most of the money going to Code.org or another charity of your choice. I've met the Give Freely team and trust them. It does not collect any PII or browsing activity, and it doesn't overwrite other affiliate/voucher codes so it never costs you anything. If you find the donation popup too intrusive/annoying you can disable it forever in the extension options, or in the donation popup itself.

> Code.org is a good cause that's relevant to a lot of the same people who use this extension regularly, and clicking a Give Freely donate button is a genuinely free and anonymous way to show your support for both, if you want to. If you don't like it you can turn it off, or if it makes you more comfortable you can switch to JSON Formatter Classic, which has no Give Freely code and corresponds with the v0.8 branch in my archived json-formatter GitHub repo. Or try one of the many forks or alternatives available on the store.

> JSON Formatter Classic: https://chromewebstore.google.com/detail/json-formatter-clas...