Have you looked at all of the APIs that are part of the standard?

These are from the Firefox website

Of course it also knows your device, operating system version, screen resolution, phone orientation, etc.

Not to mention that websites can track you across other websites.

What information do you think apps have without your permissions that websites don’t?

https://developer.mozilla.org/en-US/docs/Web/API/Geolocation...

https://developer.mozilla.org/en-US/docs/Web/API/Acceleromet...

https://developer.mozilla.org/en-US/docs/Web/API/Navigator/g...

https://www.w3schools.com/tags/av_prop_volume.asp

Geolocation sharing can be disabled as reflected in your source. Everything else you linked to is trivial, but notwithstanding, it all relies on JS which, as I already said, can be disabled. Oh, and many aren't even available in Firefox: https://developer.mozilla.org/en-US/docs/Web/API/Battery_Sta...

> What information do you think apps have without your permissions that websites don’t?

Your actual personal information. Access to photos, messages, metadata (name, address, contacts, notes, metadata, habits).

And Geolocation can also be blocked by your OS and is opt in. Access to photos is also opt in per app as is contacts

An app does not have permission to your name, address, contacts unless you explicitly allow it

And mobile apps don’t have access to your notes or any “habits” outside of when you use the app.

And “disabling JavaScript” in 2025 makes most websites unusable.