I searched for a duplicate result remover for search engines. This is just spam.

this kind of tool is just in need

Great addon that helps reducing your dependency to mouse and focusing only on the keyboard.

I make use of the Alt+J and Alt+K shortcuts very heavily to go back and forth between search results. There is a problem though, when Google generates snippets such as "People also ask", or "Best answer" from sites like stackoverflow, it works weirdly, skipping some results or just losing the indicator that moves over search results (a red arrow in my firefox). If you can handle these, it would be great!