Whether support headless mode?

Support.
1. Add custom startup browser parameters manually for single configuration file.
Edit configuration file settings -> Other Configuration -> Customize startup browser parameters -> Input "--headless" -> Save

2. Add custom startup browser parameters automatically for newly created configuration files.
System Settings -> Preferences -> Customize startup browser parameters -> Input "--headless" -> Save -> This parameter will be added automatically into all newly created configuration files. For old configuration files, set according to the first way.
As shown below