I hate add-ons that sneak onto your system and then behave like they have a god-given right to be there. Every time I delete this aggressive Chrome extension, it reappears. It never asks permission and it insinuates itself everywhere in Chrome.
So far, I have removed it from the Chrome extensions page several times. But you must also seek it out in every list of pages – such as the list of pages to open on a new tab – before you have really eradicated it. But I found out today that this is not enough, as it installs itself as a progam too. Which I have just uninstalled. We’ll see whether this one takes.
Use it at your own risk. Maybe you like to be told which search engine you should be using. I don’t.