Favourites diaappearing

Hello Brian,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you confirm if it disappears when trying to do something or randomly?
We will certainly help you out.
Thank you and keep us updated.

I take time to set up my favourites and then  when I next go into AVG Browser most of the favourites have been replaced by various sites which I never have  and never will use.
How do I stop this happening?

Hello Brian,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you confirm if it disappears when trying to do something or randomly?
We will certainly help you out.
Thank you and keep us updated.