Norton Trojan / hacker what to do?

Re
1

I just surfed in Firefox, but then I suddenly got a message (or was I directed to another page) with a guy who somehow started talking and said I had a Trojan on my laptop and was supposed to be authenticate. I quickly realized that it must be a fake and have Firefox terminated by Task Manager. Have then "Norton Security" scan and there was no message after the same with Avast, again no message.

After about 10 minutes I opened Firefox again and immediately came back the same fake website. Now I also got a message from Norton that someone tried to break into my laptop. But Norton assured me that I do not have to do anything. After that there were at least 10 attempts by one or more intruders!

Again and again there are other names. Here are two examples. If that helps →

Web Attack D-Link router

OS Attack: GNU Bash CVE-2014-6271

So these are the names of the IPS warning.

I'm pretty worried now, but Norton has blocked everyone, but who knows if not one has come through.

So my question: Should I do anything now? Or. What can I do? I've already uninstalled Firefox with a heavy heart.

ma

Something comes mostly from dubious websites, and dlink router is then probably your router which is displayed as an error attacker