From January 14th, 2021 to January 12th, 2023, 100% user give 5-star rating. for Amazon Only No Third Party Seller chrome extension.
Actually works and is very useful.
Does exactly what it says, makes filtering results easier and makes amazon usable again. No more 20,000 listings of the same item. My only nitpick is that you have to click the extension after every search, not a big deal.
I got so tired of junk sellers on Amazon selling counterfeit items and Amazon made it more difficult to filter them out, so I went searching for an extension to do it for me. This one fits the bill and works well enough. I did notice that you have to click the extension icon after each new search for it to take effect on the page. If you search once, click the extension, and then search again the results from the second search will still include 3rd party sellers. Not a problem - just click the extension again.
Very useful for me to filter out products from third parties. For lots of things like baby products, I only want to buy directly from Amazon.