After restarting Firefox today Avast popped up, telling me I had a "low reputation" search provider installed. I chose to keep the existing and clicked continue.
It then told me I had a low reputation browser add-on installed, namely "Download with DAP". I chose "Skip", rather than let it "fix" this "problem", as I want to use this.
In the next screen I was told that my insecure search engine would be replaced. (!)
Without asking for permission my browser was then restarted and the add-on removed. My search engine remained.
I find this behaviour unacceptable. When I chose not to have my add-on removed then I don't want it removed and I don't want to have my browser restarted without asking, either.
Thank you for your time.
