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darkstar999
on Feb 2, 2018
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Firefox 59 to strip path information from referrer...
What is the current mechanism for them to know that you are in private browsing mode?
cpeterso
on Feb 2, 2018
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Websites can use IndexedDB to test for PBM. Firefox and Edge don't support IndexedDB in PBM. Chrome supports it using a temporary database.
gruez
on Feb 2, 2018
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probably checking whether the DNT header is set to 1, or whether a known tracking domain is blocked (firefox has tracking protection by default in private browsing).
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