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...
> 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).
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.
If you don’t trust your operating system to follow your instructions when using an app, then why do you trust the same operating system with your browser?
Do you have any evidence to support your conspiracy theory?
"Researchers Talal Haj Bakry and Tommy Mysk warn that 'Facebook reads accelerometer data all the time. If you don't allow Facebook access to your location, the app can still infer your exact location only by grouping you with users matching the same vibration pattern that your phone accelerometer records.'"
“Although the accelerometer data seems to be innocuous,” Mysk says, “it's jaw-dropping what apps can make up of these measurements. Apps can figure out the user's heart rate, movements, and even precise location. Worse, all iOS apps can read the measurements of this sensor without permission. In other words, the user wouldn't know if an app is measuring their heart rate while using the app.”
https://www.forbes.com/sites/zakdoffman/2021/10/23/apple-iph...
https://developer.mozilla.org/en-US/docs/Web/API/Acceleromet...
They might as well carry around flip phones.
Most people think their phones are useful, when really their phones are addictive.