Amazon Search Filter is a free Chrome add-on developed by zawa. This add-on enhances the user experience when searching on Amazon by automatically opening search results in a new tab with the "&emi=AN1VRQENFRJN5" parameter appended to the URL.

With Amazon Search Filter, when you perform a search on Amazon, the search results with the "&emi=AN1VRQENFRJN5" parameter inserted at the end of the URL will be displayed in a separate tab. This feature effectively filters out certain types of products, such as "suspicious items" or "the latest version of Reiwa," making them less likely to appear in the search results.

By using Amazon Search Filter, users can easily navigate through Amazon search results without being overwhelmed by irrelevant or unwanted products. This add-on is a great tool for those who want to streamline their Amazon shopping experience and find the products they are looking for more efficiently.

Please note that this add-on is only compatible with the Chrome browser and is available for free. It falls under the "Browsers" category and specifically the "Add-ons & Tools" subcategory.