Rất thích addon này

EDIT: Thanks to the Avast team for response, I had removed the add-on from toolbar and was looking for settings in... settings. Found the correct settings tab now as per below, and disabled search rating score. Also note that the app does NOT block tracking etc cookies by default, you need to turn this on, which is a bit weird but hey. Still, very nice.

Excelente melhorou muito meu navegador.