I still suspect there is a malformed URL that your browser is attempting to access and since it can't access it, it is defaulting to your default search page, Google. I recommend investigating what that is (preferably in the source of the problematic page).
If you purchased Community ACL prior to it becoming free and still have an active license for support, you can create a ticket using the link in my signature and someone can look into the issue for you.
Kindest regards,