Why does my firefox default home page keep getting changed to alma linux marketing?

Security
1

My firefox home page keeps getting changed without my permission to

file:////usr/share/doc/HTML/index.html

which apparently is alma linux asking for money, marketing etc…

Is this normal? How do I turn it off?

2

I don’t use “home page” – have no use for such thing – so cannot say what is normal.

I see no request for money on that, just info about AlmaLinux.
Although, donations of sweat are probably appreciated.