Avast Online Security Settings don't work properly

Avast Free Antivirus / Premium Security
1

Hi, in my Windows 10 Home x64 and Firefox Avast Online Security Settings don’t work properly.
When I mark all settings “Do not track”, that I mean:

  • Block social networks by default
  • Block ad tracking by default
  • Block web analytics default
  • Block other by default
    and I save these setting, Avast Online Security don’t save them permamently.
    After restart my Firefox these settings are unmarked.
    Why can I set them marked permamently?
    Regards, Ann
2

Do you cull cookie settings when you close firefox ?

If so this could be killing the settings. I can’t say for certain as I have long ago stopped using the AOS plugin for firefox, so I can’t test this.