When I encountered this issue with Firefox, I discovered that “%appdatalocal%/Mozilla Firefox” was not in my path statement. Katalon simply couldn’t find it.
Once my Windows environment path was fixed, Katalon was fine.
To change the Path in Windows 10:
- In Windows Search type “env”.
- Select “Edit environment variables for your account”.
- Add this line to the User variables Path statement (including the quotes):