macOS PWA apps don't show up as applications in Activity Monitor

[cgioia]

Description

PWAs on macOS differ from other applications in how they show up in Activity Monitor.app. Other apps (and even Safari Web Apps) get listed as a full "Application" so that their energy usage can be monitored, and so their hierarchy of processes is kept sorted correctly. Firefox PWAs do not get this "Application" listing.

This prevents the application from showing up in the Energy tab when sorted by Applications, and it also causes issues for apps like iStat Menus, which end up showing loader as the process rather than the application with the correct name/icon.

Steps to Reproduce

1. Create and run a Firefox PWA
2. Open Activity Monitor.app from Utilities
3. Go to the Energy tab, then View -> Applications in the last 12 hours
4. Observe that the Firefox PWA does not get listed

Additional Information

I think this is related to the fact that other apps have an application bundle at the top of the process hierarchy. Firefox PWAs have the loader process as the top level (i.e., directly beneath launchd).

Environment

• Operating system: macOS 14.4.1
• System architecture: Apple Silicon
• Installation method: Homebrew
• PWAsForFirefox extension version: 2.12.0
• PWAsForFirefox native version: 2.12.0
• PWAsForFirefox runtime version: 125.0.3
• Firefox version: 125.0.3