[zbjornson]

I've used it to automatically position auxillary windows adjacent to the main window in a data analysis application. I don't see how it reveals anything private about the user... my screen resolution and window location are not secrets to me.

[catmanjan]

But they may be unique to you, making you more identifiable/trackable. The TOR browser warns you when resizing the window that it reduces privacy.

Personally I don't care either, just thought you might want to know!

[hashmymustache]

But just because it's unique, why does it make it trackable? The overwhelming majority of devices have one of a few common display resolutions, so what's there to link across sessions for identifying users?

[zodPod]

The idea is not that your resolution is unique it's that the maximized window size is unique. They can then track that you have more than one monitor, what size that monitor is, and, probably with some easy math, a jist of how many you have. That setup is probably a lot more unique than expected. That plus possibly some canvas finger printing or something similar could probably keep pretty good tabs on you. I have 3 identical 21 inch monitors and I'm browsing on the left-most monitor. Anyone else have that same setup?