It's a fresh opera install. Yes.

It's a fresh Ubuntu 16.04 installation. Opera is version 43.

Thanks.

Your solution didn't work unfortunately.

Recent change was reinstalling from Linux Mint 18 to Ubuntu 16.04. I guess that's where it started.

Every 10-15 minutes there's a popup with some google authentication stuff. it closes down after 1-2 seconds. It does however minimize everything else(or go in top of f.e. games/movies), which is super annoying.

I'm on Ubuntu 16.04 - Opere 43.0.2442.806.

Any pointers?