Garbage Rated 1 out of 5 stars
Don't bother. This extension is garbage, as it doesn't allow you to alternate between showing History and Search results in the Address bar at will like CyberSearch did; it shows both at once (not leaving enough space for either). Also, what if I want to add a site to search in it without having to add its search engine to the the Search bar? I could do that with CyberSearch but not with this one.
So if you can, install CyberSearch instead. Even if CyberSearch isn't compatible with your browser's version, this extension isn't worth it.