Thanks… The extensions are installed correctly.

Please can you run the browser and tell me if AvastNM.exe is running?
If no, please go to C:\Program Files\Avast Software\Avast\

  • is there AvastNM.exe and AvastNM.json?
    If not, please send me content of this folder: c:\ProgramData\AVAST Software\Persistent Data\Avast\Logs\

Thank you