Enable Flash Plugin in launched browser instance

I am using sikuli together with selenium to automate a flex application using katalon studio. I am not able to enable flash plugin in the launched browser instance before starting the test. Is there any launch configuration I need to set for this ?

Please help me on this. I am using Chrome and Firefox browser latest version.

Thanks beforehand.

https://docs.katalon.com/katalon-studio/docs/open-chrome-with-extensions.html

I think this tutorial might help.