As someone who utilizes these tools for anti-fraud purposes, Firefox is just as trackable if not more trackable than Chrome (especially because you stand out by using a niche browser in the first place).
Firefox exposes a massive amount of identifiable information via canvas, audio device and feature detection methods. There's also active methods to detect private windows, use of the developer console and more.
-window was resized/moved, send a websocket snitch to the backend
- keep a consistent web socket open, or fetch a backend-api call for updates on X events
- more calls are made, means user is probably scrolling, inject more things/different things.
I see some js obfuscators out there where I look at the js file and it's all mumbo jumbo.
It is indeed a privacy nightmare, where whatever we do feeds the algorithms to aide in making other people do things.
But it's also used in network security, organizations etc. Staff/employees will use the system a certain way, if something enters it without the behaviors, it's detectable. I assume that's what you mean in anti-fraud.
Sad part is we don't know what the data is ever used for, and it's often bought and sold and the cycle repeats.
In the end all this shit we have to deal with is probably 99% used for deciding which ads to show you, which we are gonna block anyway, and it's all a complete and utter waste of computing power and electricity. This is how big tech "makes the world a better place" apparently.
If you enable privacy.resistFingerprinting in about:config I believe instead of trying to prevent fingerprinting entirely, it's supposed to make things annoying for the fingerprinters by regularly changing the various spoofed factors.
Firefox exposes a massive amount of identifiable information via canvas, audio device and feature detection methods. There's also active methods to detect private windows, use of the developer console and more.