Weird pop up every 10 minutes

I have used Avast for years with mostly great results, but now I have a strange notice popping up the last 3 days;

We’ve safely aborted connection on jackyhillty.net because it was infected with
Other:Malware-gen [Tri].

Under details I get;

Threat name Other:Malware-gen [Tri]
Severity (shows 3 boxes with the first one being filled)
URL https://jackyhillty.net/22b64cc6baa758bbbb.js
Process C:\Program Files\Mozilla Firefox\firefox.exe
Detected by Web Shield

I am guessing something is trying to hijack my system, and suggestions or removing it or fixing this?

jackyhillty.net/22b64cc6baa758bbbb.js

Java script scan
https://www.virustotal.com/gui/file/465f4436f308c357feca0d3b0278e8756e923d48e5e56b2d66703ca89d7bb89a/detection

I followed the link but, other than saying they had seen it, there wasn’t any information on how to deal with it. Any suggestions?

See my response to a very similar issue in this topic, https://forum.avast.com/index.php?topic=233231.0 .