Ubuntu – MainThread unfamiliar process suddenly showing up 18.04

background-processprocess

This morning, running top, I noticed a process I nave never seen before in my Ubuntu 18.04 laptop called MainThread, which was periodically using a lot of CPU . There was also an entry called Privileged Cont.

I recently installed nordvpn, but nordvpn support said the process is not theirs. Is this a new part of the operating system? Is it malware? It has never appeared in top on my laptop before, as far as I know.

Best Answer

It is a change in recent firefox version (79+).

There is a bug about this.