[linux-elitists] Browser fingerprinting

Rick Moen rick at linuxmafia.com
Mon Oct 7 16:38:31 PDT 2013


Quoting Andy Bennett (andyjpb at ashurst.eu.org):

> I'm running Iceweasel on Debian and I'm unique in their set as well.
> 
> Judging from their summary table, the "System Fonts" entry seems to be
> the thing that identifies me. Fonts from my ~/.fonts/ directory are
> being listed there so I guess I've got the system set plus my personal
> set. I wonder how unique the system set is and how much of it comes from
> the base OS and how much is contributed from selectable packages.

I'm just guessing that these data are being probed via the CSS
@font-face feature somehow(?).  Panopticlick is unable to query
System Fonts data from my system, and I'm pretty sure it's because I
have NoScript's 'Forbid @font-face' control enabled (Preferences,
Embeddings, Forbid @font-face).

I note:
http://hackademix.net/2010/03/24/why-noscript-blocks-web-fonts/



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