avast only changes a search engine if you give permission.
avast only removes a add-on if you give permission.

About the safezone (/browser), you should care as they are two different things.

I do not see any reason why your post should be deleted.

What I do see is a user who should have spent some time learning about avast (what it does, the settings etc) and should have paid more attention to what avast shows on the screen.