Considering the MASSIVE PR campaign started by Mullvad, I wouldn’t touch their “new browser”, for everyday use, with a sixteen-feet pole. It’s just Firefox with NoScript, uBlock Origin, Mullvad Browser Extension and search engine changed to DuckDuckGo, after all. And I severely dislike PR campaigns.
Connections on start-up:
doh.mullvad.net on TCP port 443 r3.o.lencr.org on TCP port 80 ipv4.am.i.mullvad.net on TCP port 443