News for hackers. Stuff that matters.
Re:YouTube change served lower-quality video to Firefox 43 f... by drdaeman on Sunday January 10, 2016 @08:18PM (#10878207)
They add extra bits of identifying information to the pool.

You know, https://panopticlick.eff.org/

Re:YouTube change served lower-quality video to Firefox 43 f... by Survey_Sez on Sunday January 10, 2016 @08:59PM (#10878323)
https://www.browserleaks.com/ is another useful resource to help understand browser fingerprinting and how to combat it.