Hi, that i see, you use pt language for Brazil location
EXT-Browser: MMM-GoogleAssistant will search text keyword on your own GoogleAssistant Language (pt-BR) in your caseIt’s based to text response like this:
text: 'Abrindo a página da Web.', from assistant reponse
GoogleAssistant have it’s own database for each language: see there
that you an see you don’t have any keyword for pr-BR
If it’s not on database, MMM-GoogleAssistant will not send order to open EXT-Browser
Don’t forget to read Wiki before installing something 😉