I recommend removing this extension because it provides ads, search results, etc. It's considered to be adware. Try using Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system. After AdwCleaner stopped its procedure, start it again and then perform another cleaning, just to be sure.