Is there a genuine use case for changing the default search engine from an extension? Even if it has to be confirmed by the user, it still seems like a dialog that many users won't read and click on Yes anyway.
I guess this means that the extension handles the searchinput local, which seems like a very legit use case. Maybe we are lucky, and it means ALL adressbarinput is handled by the extensions, in which case this supports vimperator-style interfaces.
Another use case coming to mind is to compensate for the horrible bad ability to define your own searchengine. Leting a extension handle this would be an improvement.
Before you could click the icon in the search bar and select another engine. Now that's more hidden, so an extension to change to e.g. DuckDuckGo is an easy way to do that.
Another use case coming to mind is to compensate for the horrible bad ability to define your own searchengine. Leting a extension handle this would be an improvement.