This uri blocked by uMatrix will crash the browser and takes down extensions...

Viruses and worms
1

Re: uMatrix has prevented the following page from loading:

htxps://js.ad-score.com/x.html?pid=1000396#dbabec.lifeimpressions.net
without parameters = hxtps://js.ad-score.com/x.html
pid = 1000396

See detections: https://www.virustotal.com/gui/ip-address/35.190.71.1/relations

polonus

2

Thank you.
This is a False Positive.
The JS is part of https://www.protected.media/ cyber security solution, detecting Bots attacking online advertising.