Understanding Private Browsing

blog.mozilla.org
2 min read
easy
Private Browsing was introduced in Firefox 3.5, giving users the option of browsing the web without keeping track of their history.  A recent Test Pilot ...
Private Browsing was introduced in Firefox 3.5, giving users the option of browsing the web without keeping track of their history. A recent Test Pilot study recorded, among other things, the time users activated Private Browsing, and the time they deactivated it. Though what happens in Private Browsing stays in Private Private Browsing – that is, neither Firefox nor Test Pilot records anything during the period – we did learn a few things about the timing and duration of of Private Browsing mode sessions.

Here are a few simple insights we've gleaned from the data.

Note: Test Pilot is an opt-in service for Firefox 4 Beta users. We would never record a user's activity for…
Staś Małolepszy, Ian Thomas, Thelem, James Sullivan, Hamilton Ulmer, Peter Tanham, Ken Saunders, Alex Faaborg, Jeff K., Jeff Flowers
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