Ubuntu and chrome combo

I can see the Arduino Create ikon in the system tray, and when opening debug console, it looks like there is communication going on, but when visiting https://create.arduino.cc/editor/ it can't connect and it says the plugin is not detected. I've tried reinstalling multiple times, and I've tried using firefox instead of chrome. Ordinary arduino ide works fine. Any tip on how to debug this would be greatly appreciated. The old codebender plugin used to work fine.

And suddenly reinstalling the plugin worked. No idea why.