"""
Due to the CrashpadMetrics.pma files Google Chrome writes every day, our server storage capacity is a little bit narrow at the moment.
As you can see in the appendix Google Chrome almost daily writes a 1MB file for every user in our organisation (80 users total).

Is there anything we can do to not generate these files? Or an option to automaticly delete these .TMP files after several days?
We're working on an Citrix environment with Chrome version 60.0.3112.101 (Official build) (64-bits)
"""

I would expect the .pma to be written while Chrome (and Crashpad) are active, but then removed on browser restart. (Does that sound right to you Brian?)

The file remains open and active throughout the life of Crashpad.  Upon next restart, a new file will be created and the old one will be processed for any remaining data and deleted within about 1 minute of startup.

Of course, there is an 8MB BrowserMetrics.pma file in the profile directory that generally follows the same rules.

Thank you for your quick reply. We suspect the issue is somewhere in our Citrix environment. Since we're going to terminate this environment, we don't have any more time to solve this issue.

Thank you both for your time and to place an update on my question.