getting frequent blocked threats

Hello! For each of the past few days, I’ve gotten several “threat blocked” notifications. They all say
"We’ve safely aborted connection on api2[ or 3 or 4 or 5].tracemonitors.com because it was infected with URL:Blacklist.

The notifications seem to come with random web activity on Chrome.

I’ve run scans with no problems reported.

What can/should I do about this?

Thanks!

The notifications seem to come with random web activity on Chrome.
Clear your browser surf history

still problem?

Turn off all browser exstensions, did that help? if so use one at the time to find out what is connecting to that url

Thanks. I disabled all unnecessary extensions and the problem disappeared. A week later, I re-enabled “music downloader for soundcloud” and I immediately got the Avast notification. So that was the culprit!