Youtube search fix: This is not a extension but if you save this as a bookmark javascript:location.href=location.href+‘&sp=CAASAhAB’; in your browser it can be used to remove youtubes recommended / “people also watched” videos from a search.
To use it, search for something on youtube and then click the bookmark you have made and it will then reload the search page and only show listings for what you searched for and remove youtubes recommended / “people also watched" videos from the search.