SeleniumChromeFull stays in memory sometimes

[rumca-js]

I call driver.close(), then driver.quit().
I can try killing processes, but that is ugly, and may not work in long shot.

Check running two selenium at once
Maybe one pyvirtualdesktop is enough?

We could be using driver pool

[rumca-js]

seems to be an issue with chrome undetected. When it was starting on raspberry pi, the browser was incompatible.
So it was starting, but was also generating exceptions.

[rumca-js]

If we detect many processes of chrome (more than ... ?) maybe we should inform user on the main panel?